Regarding the first thing on the list- if you go into a music store and ask for "tambourine brushes," you'll probably be laughed out of the building, as they don't exist (take it from a musician). I think the author of the list means "snare brushes," which while moderately pricey, could prove to be a fun toy (they are a retractable brush made of a cluster of heavy wires, about 7 inches long). Guitar clamps are also good for heavy-duty clamping, leather bassoon seat-straps make excellent strops, reed knives and files are excellent for knife-play....there are so many items at music stores that could be used in a BDSM setting! Keep in mind that many items will be pricey, but they will be of highest quality.
-Phan