Brainstorming

Hello everyone,
Just wondering if any of you have any ideas of how I can get my students excited about piano lessons and motivated to practice. One mom called me and said that her daughter was really discouraged this week in her practicing and felt like giving up. So, she was wondering if I could think of something that would help...maybe a reward...but not candy or chocolate. In her lesson yesterday, b/c I had such short notice, I asked her to draw a picture about one of the pieces she is playing sometime this week (she loves to draw), but is there some sort of somthing she could work towards? Her previous teacher (not Lauri) let her add a bead to a necklace for every week that she practiced a certain amount...and she finished it by Christmas. Do any of you have any other ideas of little projects she (and other students) could work towards? That aren't too expensive either? And any other ideas that might be more exciting for older students?
Amanda