Another quick and easy project that can easily be modified with the materials you may have on hand is painted wood blocks.
1. Start with scrap pieces of wood. I used 2x4 blocks in varying lengths. Sand any rough edges and wipe off dust with rag.
2. Apply a couple of coats of spray paint over entire block. I found that rustoleum spray works best.
3. Then apply stickers and apply one coat of spray paint in a different color. (Sorry I don't have picture)
4. Once paint is dry peal of stickers and roughly sand around edges and all over block until you get the desired look.