In automotive supply stores. It is a rack of parts with the trade name 'Help'. These racks include a bunch of different items to help out with the small parts we require. Sometimes they are circular on a turn table. Other times they are a section of a standard store rack/shelf.
They do have a web presence someplace here on the 'net. MotorMite is another trade name they use.
You can also try some of the vendors here. But I wouldn't want to do an $8 mail order, which is why I mentioned the Help rack.