The next time you're in to see your favorite dentist, ask if you can get a few dental picks or other instruments that are no longer useable. They work geat for removing "O" Rings, retrieving small nuts, washers etc. that tend to fall into tight places that fingers don't fit in as well as small scrapers. You can't beat the price, I got about a dozen free. Dental burrs are also useful, the shank is about 1/16" , fits your dremel tool collet.

bhady