Recycled jeans notebook or planner. Use a regular notebook, and cut up them jeans that the kids have outgrown. Also a good idea: using a larger notebook and a patch/screenprint from an old favorite shirt.
Use old jeans, cut into squares, add some batting material to the center, sew edges together. Either sew or draw the "X" and "O" onto them and instant tic tac toe game for kids! - Cool to do with beanbags too.