Silicone Water Bottle Ice Cube Trays have a unique shape which forms cubes that easily slip into your water bottle or soda cans. Silicone is FDA approved and can be used for baking and freezing temper...
AdvantagesEasy to use, strong, no leaks, good price
AdvantagesEasy to make, store
AdvantagesLook cool, durable, dishwasher safe
DisadvantagesMaybe a bit too girly for the boys!