You can pick up a siphon sandblasting gun at Home Depot for $15 and a 5 gal. bucket for only a few bucks. You'll need a big compressor to keep up if you're going to do a lot of blasting. A small portable compressor could overheat if it's constantly running.
I picked up a small blasting cabinet from Northern Tool and Equip. Co. for around $140:
Sandblaster Cabinet ]sandblaster cabinet[/URL] - this works great for small items and you don't get sand in your hair! Plus it recycles the sand. I fit a 16x7 Fuches in it.