I used Primary Elements Artist Pigments, Primary Elements Clear Gloss Medium, and Radiant Gels Dimensional Paint from ColourArte products to paint feathers on electronic device covers, officially called "Tablet Sleeves."
The covers are foam lined and I purchased them for $1.00 each at my local dollar store. Obviously they are intended for an Ipad or other tablet, but can be used for much more.
Think: Photos, sketchpads, pencils, watercolors, books, travel receipts, etc.
Please follow my blog for more art news!