I've made some banners for Wikipedia:
http://www.rose-hulman.edu/~yerricde/pix/wikipedia-468x60.png
Reduced-color version of WojPob's 468x60 banner, 5 KB
http://www.rose-hulman.edu/~yerricde/pix/wikibutton.png
88x31 button, 2 KB
http://www.rose-hulman.edu/~yerricde/pix/wikipedia-freewld468.png
"wikipedia.com: encyclopedia for the free world" 468x60 banner, 6 KB
- See also : User:Damian Yerrick