You can get the vinyl from Hobie Cat (I've done it), although it's not in the catalog. You'll probably need to go through a dealer.
They may not have the colors / style you're looking for though. There were three colors of the "Hobie" - purple ('99-03), light blue ('04-'07) and red ('05-'11).
Some of the red ones say "Hobie Cat", not just "Hobie".
The "16" is gray and a touch smaller (1-1/16" vs 1-3/8")
For 2012, Hobie changed the style again:
It goes with the new "black diamond" logo on the side (black w/silver sparkles)