April Fools Cup (Siphon)

thingiverse

This is a cup designed to look just like a normal coffee mug, but dump liquid whenever someone tries to drink from it with their right hand. (It may take a couple seconds to really get going) It uses a siphon, meaning it holds a normal amount of liquid inconspicuously, but once it gets tipped over, it drains the liquid,even after it is returned to an upright position. The trick to drink safely from the cup is to use your left hand. I've designed some custom supports to print the bridge on the inside of the cup. They can easily be removed by some needle nose pliers.