my submission for dA Logo T-shirt challenge.
used a couple of brushes for the splats.
the concept is the dna helix is comprised of cmyk'd pencil, paintbrush, crayon and ink pen.
i think it makes it within the 7 color limit, CMYK + the two deviant shades of green
will probably update/add to the dna helix if i get further ideas.
edit/updated the splats, found a better one in my custom shapes library
edit(11-20-2011) - re-aligned the cmyk helix bits a tad. removed the splat design on the back, moved it to back of right sleeve instead. added/adjusted a bit more splats in the strands.
thanks for looking.
p.s. you are welcome to improve/expand the execution on the concept so long as you reference/credit me in a link in the description