Create and Add the Wheels: I would consider creating your own wheels for this, since purchasing wooden or even rubberized wheels can be expensive. Just trace out a circle and use your jig saw to carve it out. Sand to perfect the roundness. Then drill a hole the same size diameter as your dowel rod, or just a hair larger, about half way through (into but not through) the wheel. **Do not drill the hole all the way through! To attach the wheels, add glue to the hole you just drilled into the wheels, and then use a mallet to hammer the wheels onto the axel rods and allow the glue to set and dry.