Endless Birthday Cake Card with Glitter

A sweet, magical birthday card — with a song that absolutely refuses to leave

Everything about this card is sincere. The cake, the candle, the rainbow, the "hope it's magical" on the inside — it's the loveliest birthday card you've ever sent. Right up until they open it. Then a bright, upbeat birthday song kicks in on a loop, and refuses to stop.

That's the whole gag. The card couldn't look sweeter; the song couldn't be more committed. We make a lot of cards that look mischievous from the cover on; this one looks completely innocent right up until the moment it isn't. The recipient will almost certainly laugh and text you "is this still going?!" — which might even start a conversation if you haven't talked in a while. Unlike a paper card that gets read once and tucked away, this one keeps celebrating for hours. For any birthday that deserves to feel a little magical, and last a lot longer than expected.

How the Endless Musical Card Works

1. Open the card to test the sound, sign it, then close the card to stop the sample.
2. Insert the card into the envelope and pull the tab from the spine to arm it.
3. Once they open the card, the song loops non-stop — even if they close it — and plays for hours, until the battery dies.
4. If they try to break the card to stop the sound, a hidden glitter trap is waiting inside.

*Plain white envelope included in all cards

Ideas for When to Use It

• For the friend who loves a bit of sparkle — the cover earns the open, the song earns the memory.
• For a daughter, sister, mom, or best friend — sweet on the outside, mischievous on the inside, just like the card.
• Milestone birthdays — 16th, 21st, 30th, anywhere a "magical" birthday wish lands right.
• From the kids — they'll pick this one for the cake and the rainbow. The surprise is everyone else's bonus.
• For someone who's gotten every other prank card — this is the one they won't see coming, because it doesn't look like a prank.