hoots
a few options.
use rice paper and print onto it (you can get it from surfboard manufactures suppliers, Len dibben, colin earl?)Normal to glass this under a 2-4oz glass sheet for protection. this is a light weight option but can have strength problems in the laminate
Get a fine weave 3/4 oz glass cut into what ever sheet size you want (A4 A3)tape up the edges this can be run thru a colar printer no problems. then glass this onto your board again probally pay to glass this in the laminate.
Use 100% cotten and get it screen printed. I have used cotten prints from fabric shop as a final skin with no problems. It will glass up a bit textured which is a good thing on the deck as it will allow easy gripping for all those GAY board off moves that all of us can do but choose not to do

but proceed to take the piss out of...
paint your board eat heeaps of smarties and drink a few gallons of coke and hit it with an airbrush.
Get your imgae cut into vinyal sticjers and just stick onto the board
what ever you do you will ahve the dark carbon colour underlying
have fun