There were plenty of Ultramarines at Golden Demon 2014
Ultramarine Captain 40k Single Miniature
Ultramarine Centurion Assault Squad 40k Squad Entry.
Everyones favourite grav gun armed telly tubby terminators.
Ultramarine Dreadnought 40k Vehicle Entry
Note the use of a MkIV helmet and power claw effects.
Ultramarine Horus Heresy Jet Bike 40k Vehicle Entry
A really interesting conversion with a simple yet effective insignia. I assume this counts at an attack bike in 40k.