Folks,
I didn't see these posted anywhere - apologies if they've already been mentioned.
I found these two models whilst searching eBay - they're the Talon and Mako jetbikes - you can see them here from a seller called Machinator248, store name is Blood and Skulls Industry.
http://stores.ebay.com.au/bloodandskullsindustry
According to the description, they are 104mm long, 74mm wide and 28mm high. They're an 11 piece kit, come with a clear mounting rod, but no base.
I quite like them - bit of a Battlestar Galactica vibe to them
IMHO. Look like they would make nice Marine bikes.
Padre^.
PS I'm nothing to do with the seller, just posted them for interest.