Presenting a client with your artwork on a template is very useful. It gives them a view how it would be perceived if it actually was on the surface of whatever you are designing for. It's much better than just presenting them with the 2D art. I came across these extreme, excuse me XTREME sports templates. You have a skateboard template, a snowboard template, a surfing template, a skiing template, and a wakeboard template for you to add your XTREME designs on. Have fun with these.
Links for download: