This very very easy to make. You most likely aready have the ingredients so save yourself a buck and make your own!
1/4 cup of sugar (or however much sprinkles you desire)
4 to 10 drops of food coloring (follow the boxes directions for color combos)
Preheat oven to 350 F.
Mix together sugar and food coloring. Make sure to add one drop at a time and mix well. Once the color is even and the shade you want, lay the mixture out on a baking pan and flaten it out. It is best if the sugar is spread out very thinly.
Bake for 10 min. Let cool.
You can then use it right away or store away for later use!
See wasn't that easy!