I'm trying to find a picture or name of the board Bulk and Skull rode. Not sure if it was on the show or the first movie. It looked like 1/3 of a Gonz board wheel and I think they were riding tandem.
(http://www.geekywives.com/wp-content/uploads/2011/06/Bulkandskull.jpg)
(http://blog.tweakerzine.com/wp-content/uploads/2009/10/ps7-505x378.jpg)
(http://skateandannoy.com/files/2012/07/wtf.jpg)
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Found it via SkateandAnnoy.com