What Fits Inside a Plastic Easter Egg?

By Olivia · OMyFav founder · Updated August 14, 2026

Standard plastic Easter eggs are small, so mini things fit: a small keychain, a single small squishy, coins, stickers, a folded note, a couple of wrapped candies. Bulkier toys need the jumbo eggs. We won't quote a filler's size in inches, because “standard” and “jumbo” eggs vary by brand and our packs are assortments where pieces vary in size too. The one reliable check is physical: hold the item next to the eggs you own and see if the halves close without forcing them.

What fits in a standard plastic egg?

A plastic Easter egg is a hollow two-piece shell that snaps together, sold in a common party size and a larger jumbo size, and what you can fit inside is set entirely by which of the two you're holding. The common party size is genuinely small. Things that slip in without a fight: a mini keychain, a single small squishy, loose change, a folded dollar or a note, a small sheet of stickers, a temporary tattoo, a couple of wrapped candies. Things that don't: anything with real bulk to it, a full-size plush figure, a boxed toy, or several items you're trying to cram into one shell. The filler has to let the two halves close and click without you leaning on them. If you're forcing the seam, it doesn't fit, and it'll pop open in the grass.

Flat items are the easy win here, and they're worth remembering because they never fight the shell: stickers, a temporary tattoo, a folded note or a tiny drawing, a coin or a folded bill all lie flush and close every time regardless of egg size. They also pair nicely with a small toy (a keychain plus a sticker, say) when you want an egg to feel a little fuller without jamming in a second bulky thing. The pieces that cause trouble are the round or chunky ones, because a shape that's fine in every dimension but one still won't let the egg shut. When you're eyeing a toy, look at its widest point rather than its average size: that's the measurement the egg actually cares about.

What we deliberately won't do is give you a number in inches. Egg brands differ, jumbo eggs differ from standard ones, and our own packs are assortments where the pieces aren't all the same size, so any dimension we published would be wrong for a good share of the eggs and items out there. A number would feel precise and mislead you. The size reference that holds up is the one in your hands.

Small soft animal squishies, the kind of mini filler that tucks inside a standard plastic Easter egg

Standard vs. jumbo: which egg do you need?

Think of it as two buckets. Standard eggs handle the mini stuff: small keychains, single small squishies, and flat items like stickers and notes. Jumbo eggs exist for everything that won't let a standard shell close: a full-size squishy, a plush keychain figure, a small boxed toy, or a little bundle of items in one egg. If you already know you want the bigger pieces from an assortment inside eggs, buy jumbo eggs from the start rather than discovering on Easter Eve that the shells won't shut. Here's how our packs sort across the two:

Filler Fits a standard egg? Needs a jumbo egg?
Cute animal squishies, 24-pack The smaller squishies, yes (check yours) Larger squishies do; size up if it won't close
Kids keychains, 24-pack Mini charms fold in with the clip (check yours) Bulkier charms or long clips want a jumbo egg
Cute chickie keychains, 24-pack Small chick charms fit most standard eggs Larger chicks want a jumbo egg

Because every row above depends on which egg and which piece from the assortment, treat “check yours” as the real instruction: it's not a hedge, it's the method. For the per-piece bulk pricing on each of these, the Easter egg fillers guide lays out the cost side.

How to check the fit before you buy a whole pack

You can save yourself a pile of eggs that won't close with about five seconds of checking. First, look at the listing photos and any size reference an item shows, and compare it against an egg you already have in your hand. Second, if a pack is an assortment, assume the largest pieces are the ones that'll fight the shell, and judge by those. Third, when it's genuinely borderline, size up to jumbo eggs or pick the smaller filler; both are cheaper than a batch you can't use. And if you can, open one item and one egg before you stuff the whole set on Easter morning. The test that matters is whether the halves click shut on their own.

One measurement worth knowing has nothing to do with our eggs or our items and everything to do with young children: federal safety rules ban toys intended for kids under three if a part fits completely inside a test cylinder 2.25 inches long by 1.25 inches wide, a stand-in for “the fully expanded throat of a child under three years old,” per the U.S. Consumer Product Safety Commission. The small-parts line is age three, and we didn't set it. Anything with a clip, a ring, or a pom pom stays away from under-threes, and the age grading on each listing is the rule, not a suggestion.

This is exactly the kind of thing that's easy to get wrong from a product photo alone, which is why we'd rather tell you to check than promise a fit we can't guarantee across every egg brand. Once you know the fit works, deciding whether to stuff your own or buy prefilled is the next question; our prefilled vs. DIY cost guide covers that call.

Frequently asked questions

What fits inside a standard plastic Easter egg?

A standard plastic egg is small, so mini things fit: a small keychain, a single small squishy, coins, stickers, a folded note, a couple of wrapped candies. Anything bulky is a squeeze. Because egg brands and toy assortments both vary in size, a number in inches won't settle it; hold the item next to the eggs you own and see if the halves close without forcing them.

How big is a standard plastic Easter egg?

There's no single standard. The common party-size eggs are small and jumbo eggs are noticeably larger, but exact sizes differ by brand. That's why we don't publish a filler's dimensions in inches: it would be wrong for half the eggs on the market. The dependable check is physical. Does your item fit your eggs with the halves fully closing?

Do OMyFav keychains and squishies fit inside a plastic egg?

The smaller pieces in our assortments generally fit a standard egg, and the larger ones want a jumbo egg; our packs are assortments, so sizes vary piece to piece. We won't claim every item fits every egg, because that depends on which egg and which piece. Check the item's size against your eggs before committing a whole pack, or plan to use jumbo eggs for the bigger pieces.

What needs a jumbo plastic egg?

Anything that won't let a standard egg close: a full-size squishy, a plush keychain figure, a small boxed toy, a handful of items you want in one egg. Jumbo eggs are made for exactly this and give you room to spare. If you're filling with our larger pieces, buy jumbo eggs rather than fighting a standard shell that won't shut.

Can I put a keychain in an Easter egg with the clip attached?

Usually yes for the smaller keychains: the charm and its clip fold into a standard egg. A bulky charm or a long clip can be what stops the egg from closing, though. If it's tight, either use a jumbo egg or tuck the clip alongside the charm so nothing sticks out past the seam. As always, test one before you do the whole batch.

OMyFav makes the products featured on this page. All “shop” links go to our own Amazon storefront.

Fillers sized to slip into an egg

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