evolved from Von Dutch's 2 stroke pogo stick, the Hop Rod... dangerous powered pogo

This is the first time I've seen one in person. It looks unused because it probably is virtually unridden. These things have hurt people, and the only riders that I've seen (on youtube) successfully not get thrown have been skateboarders and stunt men

to see Von Dutch's design: http://justacarguy.blogspot.com/2009/12/two-stroke-pogo-stick-and-nitro-roller.html

the Pentrike (might be it's name) of Ed Roth

Found on http://zelastchancegaragedu78.blogspot.com/2010/06/ed-roths.html
I can't find anything else on the internet about it, but if you are interested in another unheard of Roth creation, the "Rubber Ducky" see a full page about it here:
http://www.ratfink.org/roths_rubber_ducky/index.html

great stuff found on ihatemotorcycles.tumblr.com

check out the coolest futuristic designer ( he did the new Tron vehicles ) http://www.danielsimon.net/artdata/mopped/mopped.html

In the case that you don't click on the above for he full size version to read what it says, it is Acme fix it service

all this and more at http://ihatemotorcycles.tumblr.com