Don't throw that old composition book or notebook just yet. Tear off the pages and put some more garters and some carton strips and you have now a cover for your tablet. It's something that's unique that your kid wants to have. Plus, you don't have to spend anything for it.
Instead of throwing away your kids' leftover watercolor, use the last squirt of paint to make DIY cards. This is a great project with your kids to prepare for celebrations and invitations that need these cards. You do not have to buy the ready made ones in the store that costs so much. The good thing is you can keep them in a box and use them when needed.