For Halloween this year, I thought about being a sexy lobster, but I wanted to keep at least one hand free to hold drinks, open doors, and shake hands with the new people I meet. My friend suggested the pistol shrimp
, which uses its one oversized claw to shoot a jet of water that stuns its prey. This idea sounded so nerdtastic that I just had to do it! The best part of the costume is that hidden inside the claw is a cap pistol, which is used to simulate the popping noise created by collapsing cavitation bubbles.