I bought the smallest wood dowel they had at Home Depot. Then I went to AC Moore where they had the round wood bases. I drilled a hole in each base which happened to be the exact size of the wood dowel (probably 1/8" drill bit and hole). Then I cut the wood dowl into 2 1/2" sticks. The asteroids are made out of Styrofoam balls covered with some sand and painted brown. I had the asteroids made already so it was just a matter of finding a way to base them. I plan on using these in games of X wing and battlefleet gothic.