Mark, Back in May of 2000 BobnotBob posted a website of plans fo amag polisher that he built. the site is still up, find it athttp://www.geocities.com/bobnotbob/
I built one and I put a few pic om my website athttp://betagliphs.com/mag1.jpg and
There are instructions in the archive from a gentleman who did thislast year. I have not built the device but the "plans" werereasonable. Because he was using stock materials the finished devicelooked somewhat large.