Although I would never recommend you keep a gun of any kind in the house, I think I would make an exception for the Freeze! Pistol Ice Tray. As though inspired by the recent Freeze! Project, it makes cool gun cubes that will provide the necessary protection for your drinks.
Sold for a mere $8, the Freeze! Pistol Ice Tray makes six ice cubes per tray. This dishwasher-safe design was the brainchild of Winnif Pang.