In this video I convert a bit on my Dremel into a mini 1.25 flat sanding disc for finishing my jewelry pieces. By mounting the rotary tool in a Dremel workstation, I am able to make it function almost as a little bench sander/ polisher. I can easily switch to a finer sandpaper grit without even removing the disc from the Dremel.
The video is a little long. I suppose because I spend time explaining what I'm trying to accomplish My favorite workspace is inside the house, and I can't exactly have big noisy power tools blasting away! Here is one of my many modifications to make something I couldn't find.