This recent project from Martha Stewart mixes science and crafting. Grow your own crystal snowflake ornament with only a few common ingredients.
All you need to make these amazing snowflakes are pipe cleaners, Borax and water. You can change the shades easily with food coloring and even play with the texture of the crystals. It takes 8 - 12 hours to grow one, so be sure to leave time for your snowflake to work overnight.
See the whole tutorial at the Crafts Department blog.
(Image: Martha Stewart)