How to grow your own crystal necklace DIY with alum salt. Make crystals at home. This also works as a great science project for children or a cute original gift for a friend. Click through for the full tutorial / DIY including a printable step-by-step che
Crystal Egg Geodes Tutorial on Martha Stewart, and also video. This Easter craft from TV crafter Jim 'Figgy' Noonan doubles as a science project, offering an opportunity to show kids the crystallization process at work.