This is truly the BEST play dough recipe ever,and if you add dry koolaid instead of food coloring, you have smell-o-riffic dough! (this is ALMOST my recipe, although I do 1/2 cup of salt instead. and I did add the glitter for fairy play dough. big hit.)
Another pinner said "This kept my 2 year busy for an entire hour and my 4 year old busy for 2 hours! YAY! Drop vinegar tinted with food coloring onto a pan filled with baking soda. Sheer minutes of colorful fizzy fun!"