Team 228 uses a combination of orange powder-coating with reverse spray-painted Lexan parts on our robots. We had originally planned to anodize our aluminum wheels on our 2007 'bot as well, but the build season schedule became too tight to do so (even though we had acquired everything to anodize the parts in-house).
Our team also owns a three-foot-wide printer which we used to
print out panels (which we laminated) for our 2007 and 2005 robots.
And through our school, we also have access to a vinyl-cutting machine, which basically works by taking a giant roll of vinyl stickers (usually two feet wide) and cuts stickers out of it using vector images from Adobe Illustrator. These work great on Lexan,
Robot Batteries, windows,
painted plywood, and
robot carts.