Christmas DIY: DIY Front Yard Chris DIY Front Yard Christmas Decorating Projects A round-up of great Ideas and Tutorials! Including from apart' see how they made these fabulous diy tomato cage Christmas trees.
I remember making salt dough ornaments as a kid. This method, using baking soda and cornstarch looks interesting: Dries quicker, smoother and whiter than traditional salt-dough Cups Water 2 Cups Baking Soda 1 Cup Cornstarch
Make your own tinfoil portraits/sculptures. You could buy face masks and give students tinfoil. I think this would work. Would probably look even better on a black canvas or cheaper option, black card.