Homemade glue : Flour, sugar, water & white vinegar = better cheaper Mod Podge (brand of glue useful for collages and other projects where you want to stick things down or seal a surface). It's too expensive.
Milk Art A plate Milk Food Coloring Dish Soap Fill the plate with a thin layer of milk. Next, put in drops of food coloring. Then, add a few drops of dish soap into the center of the food coloring, sit back, and watch!