I like this older item from Ickle Pickle that seems no longer to be made. Vaguely it’s a dice bomb which uses coins instead of dice.
A Nickel is seen in a mostly clear container. Magician says he is going to double his money by magic. A quick shake and instead of the Nickel there are now two miniature coins.
Or you could just vanish the Nickel with a shake into thin air……
Very easy to do but looks amazing. Colors of decoration on tubes vary.






