Great idea for kids! Buy a ceramic white plate (dollar store) and let the kids make a picture with sharpie pens, then bake for 30 minutes. Clean Magic eraser will take off any unbaked sharpie mistakes.
14 Ideas para decorar tu habitación usando plumones sharpie
Run crayons through a hot glue gun onto canvas. A design or letter would be cool too. (**Do NOT do this try the other glue gun crayon projects don't put the crayons in your gluegun! use the dryer with them glued to canvas)
DIY Sharpie mugs- Buy your mugs from the dollar store, use a sharpie to write whatever you would like and then bake at 350 for 30 minutes and it becomes permanent. Great idea for everyones own cup at new house!
DIY Sharpie Mugs: She explains to the tee how she cooked her mug at 425 for 30 minutes and then left the mug to cool in the oven. The results: a permanent cup at last! -- good because I did this once at 350 and the sharpie washed off