Get images that. make Supersized seem small.
Since I once cut a B8 into an Octagon (it didn't wound horrible) I think this is also home made...but looking at the cymbal itself...I'm guess it was cut down from a Rude.
I asked the guy about the edges and if he made it or bought it that way...I never got a reply. I'm not touching it (even with your sticks)...but was curious what you thought.