Looks Fresh, Soft, and Harmless. It Is Not. A gentle pastel mint that practically whispers "someone thoughtful sent this" — until they pull the strip to open it and the glitter trap bursts everywhere. The softer it looks, the better the setup. Slip an Endless Joker Card inside and you've stacked two pranks into one delivery: glitter on the way in, a song that won't quit once they recover. How It Works Lift the flap and slide in any card — an Endless Joker Card doubles the damage, but anything works (we won't judge). Peel the white adhesive cover on the lip. Fold over to seal, then send it like any normal envelope. When they pull the strip to open it, the glitter trap bursts everywhere. Nothing you can do from your end — that part's on them. Great For Spring birthdays — soft, fresh, and completely misleading. Easter — pastel on the outside, chaos on the inside. Baby showers — a gender-neutral color hiding a not-so-gentle surprise. Any "aw, this looks so sweet" moment — that reaction is exactly the trap. Double-pranking with an Endless Joker Card — glitter on open, a song that never ends after. The Details 5x7 inches, with a little wiggle room. 1 envelope per pack. Cards sold separately — this is the envelope only. Postage depends on what you're shipping, so there's no single answer. Unfortunately.