These look quite attractive and I'm contemplating a purchase.
http://www.sadowsky.com/store/electronic-parts.html
The downside is the P&P charge of $34.77, so I wondered if anybody was interested in adding to the order and reducing the unit cost?
Please let me know if you're interested and I'll act as agent on a no fee basis! I would propose dividing the postage cost by the number of parts ordered, stacked knobs would be counted as two units.
I have found very similar looking items on Best Bass Gear, but whilst their postage is free the parts cost more. The BBG items are cheaper if you order <10, breakeven is around 10-12 knobs depending on the mix after which the Sadowsky items are cheaper.
I've not managed to locate anything similar in the UK, but if anybody knows where I can acquire them please would you let me know.