I'm thinking of using corks for this. Cut and painted corks. Try It Today: DIY, Art Ideas for Bold, Textured Walls! This is definitely an undertaking of a DIY, but this Dowel wall art via Crazinessensues would certainly deliver some texture to your wall.
What better way to teach your kids about money management than by giving them a piggy bank? Here are some creative piggy banks your kids will love. These piggy banks will serve as a teaching tool for fiscal responsibility.