I was in a mini-class for this. We used Crayola brand. We all were told to bring in "stuff" with different textures, like dotted swiss, screening, rubber carpet holders, etc. If you put these under your picture while you are coloring it, you can get some very nice effects, rather than a flat colored picture. We had a blast doing this, and I got my FIRST big box of crayons with the sharpener in it! I'd wanted that since 1st grade. A little late, but fun...