Surfer Gnar skin simply called Gnarly
yah 
yah 
Make his q throw a boogie board/buoy. Also, make mega gnar a shark.
Add Taliyah and Irelia and we have a skinline, though maybe just Pool party now that i think about it
I like it. Would be super cute if he just wore board shorts and had a surfboard on at all times, and chucked a beach volley ball.