Making Homemade Colored Sugar (or Splenda)
And very inexpensive to make your own homemade colored sugar for decorating your cakes and cookies.
Give it a try and let me know how it works for you.
P.S. found these pix on the internet.
Add 1 to 3 drops of food coloring. Squeeze out all air, and massage the color into the sugar until no clumps remain (measurements are just a starting point, use as much sugar as needed and drops of food coloring to get desired color).
Just takes a little more massaging the sugars in the bag to soften them up when using liquid food coloring.