Your best bet depending on what hull your planning on putting them on , is to contact a local vinyl graphics company and have them made. Bring him a few pics of what you want and they will just make em in most cases.
I see you avatar is a Tunnel , if your looking for something like this -
Just google search Seebold bud light tunnel
Roger Hooks Jr ( on this site) did these for me and they came out killer - until I shot rattle can clear on the boat -