Welded some stunt pegs onto my bike! Just built off the pre existing rack. Use some scrap chromed steel from a Harley bracket and pegs I got on treatland. There is a 5/8" nub on the plate that the pegs secure to. I welded it all from the rear so you don't see any of my beautiful harbor freight MIG beads. Also beefed up the seat mount (not seen in pic) but now it's not as wonky.
Stunt pegs on Maxi by max jureckson, on Flickr
Stunt pegs on Maxi by max jureckson, on Flickr
Stunt pegs on Maxi by max jureckson, on Flickr
So far I can only get one foot on the regular peg and one on the rear peg. Standing on both rear is hard and the bike gets suuper twitchy, but it's doable. Here are some clips from this Sunday.