Where is a good place to buy food coloring in bulk? We use a lot of food coloring, not so much for cooking but for activities with my little one. Do you know of a good place to buy food coloring in bulk (either in store or online)? It can be quite pricey at the grocery store.
School art and craft supply outlets sell colourings safe for children's consumption in liquid and powder forms

Powder based colour works fine in many bakery products