So you would like to pull a fun prank with greeting cards? Flying Butterfly from Adams Pranks and Magic is worth a look. It flies up to 20 feet in the air. Simply hide it inside a book or greeting card and wait for the recipient to get surprised.
More gadgets like this: here
Flying Butterfly by SS ADAMS - MAGIC MAKERS
**Disclaimer: Our posts may feature aff links. As an Amazon Associate, we earn from qualifying purchases. Please read our disclaimer on how we fund this site.