TSC has the small sand blasters on sale from time to time; just remember to keep it for gun projects only and clean your parts well before sand blasting. Often dirty/contaminated sand can contaminate the fresh surface by trapping grease inside, Its not so bad if you pre-heat, before parking, but bad news if your doing a duracoat project.
If you get into Bigger projects, CanAm's stainless tanks are a great value.