Looks Like a Normal Red Envelope. It Is Not. Sits in the mail looking festive and innocent, right up until they pull the strip to open it — and the glitter trap bursts all over them. Slip one of our Endless Joker Cards 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 Double-pranking with an Endless Joker Card — glitter the moment they open it, then a song that never ends while they clean up. Christmas — the red reads holiday cheer; the strip says otherwise. It's why we made it this color. Rigging a card you already own — turn any boring store-bought card into a glitter trap in about ten seconds. Anyone who opens mail carefully — doesn't save them; pulling the strip is exactly how it goes off. Valentine's, birthdays, anytime red works — it leans Christmas, but red pulls its weight all year. 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.
