If you love visual puns, you'll love the artwork of Michael Renouf of Non-Stick Plans. Michael's been kind enough to lend a few of his artwork to the Neatorama Art Blog. Check it out here: http://www.neatorama.com/art/2010/05/28/michael-renouf/ | Many, many more at Michael's official blog
Now, wouldn't these make for great T-shirts or posters? ;)