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Endless Blue Birthday Musical Greeting Card – Hilarious Prank That Plays for Hours Celebrate birthdays with a side of chaos. The Endless Blue Birthday Musical Greeting Card by Joker Greeting is more than just a card — it’s a non-stop party. Designed to look like a normal birthday card, it plays a cheerful birthday tune when opened… but here’s the twist: once the activation tab is removed, it loops the music endlessly until the battery dies How the Endless Musical Card Works Open the card to test the sound; sign it, close the card to stop the sample Insert the card into the envelope; pull the tab from the spine to arm it. Once the recipient opens the card it will start and loop non-stop even if they close the card; it will run until the battery dies; hours later This card has no glitter inside when it is broken like our other cards *Plain white envelope included in all cards Perfect For: Gag gift lovers who want their card to really be remembered Birthdays for friends, family, coworkers — all ages welcome Office parties, birthday pranks, or anyone who “loves” surprises Those tired of boring greeting cards and ready for chaos
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🇺🇸 Ship from USA · On Agora since 2026
$9.99