Debinmi
Cathlete
In addition to the free, download-able "stickers" you offer for every DVD (I think these were originally offered for use with the yearly calendar & Workout Manager), I think coloring pages would be a nice bonus offering too. Lots of adults are into coloring for relaxation/ stress reduction. I know there are apps that can take a photo and make it into a coloring page ... this would be an interesting option to give fans.