I was searching for Buell pegs to combine with my rearset adjusters so that my pegs are no higher but are further back with no reduced ground clearance. That's when I came across an eBay seller with "adjustable pegs" with a similar design. The difference is that these pegs are on a bracket which can be rotated so that it either drops the peg, moves the peg back, raises the peg, or moves the peg forward. The bracket is available in 25mm or 40mm.
25mm:
http://www.ebay.com/itm/360-Adjustab...item2c7bf9c62b
40mm:
http://www.ebay.com/itm/40mm-Length-...item5409d878cb
I think they are a bit expensive but it's not like the Buell pegs were free.