Sarah/s room? Paint Chip Heart Art: Punch paint chips into little hearts to create these adorable art pieces. Source: I Heart Organizing
Wrap some baker's twine or other string around a wooden block to create a graphic textured stamp. -can also use rubber bands- Stamp on inside of paper bags from grocery store or paper that comes in mailed packages, use as wrapping paper.
Exacto-knife designs out of canvas! Clever wall art idea, I would probably paint the canvas first though and then cut out a design :)