Crown yourself a royal architect and build beautiful rainbow-colored ice castles.
If the ice shapes aren't sticking when you stack, add snow between to "glue" them together.
Fill containers (pails, gelatin molds, plastic storage containers, cups) with water. Then add food coloring (about 20 drops of color per cup of water) and freeze outside overnight.
Before building, bring the ice to room temperature. When you see a bit of water on top or when the ice turns in its container, that means the ice is ready to slip out.
Build away. Decorate the completed castles with sticks and mini pine boughs, if desired.