Did you ever try the "CSI" method for finding a tiny dropped part?
The Iron Dahlia has a roll of clear vinyl packing tape about 3" wide. When I lose something in/on the carpet, I SOS her at once. She cuts off a long strip of tape and proceeds to carefully "lift" everything in and around my work area. Works 90 per cent of the time. The best thing about using this approach? No "delicate" pieces get chewed up in the Hoover!
Who says TV isn't "educational" ?