Now I'm sure quite a few people have seen this guy's art in the Sharpie ads in magazines for months now, but I thought I'd share a couple of my favorites on here... Boy Obsolete is an artist that makes art on styrofoam coffee cups using black Sharpies! I just love this ad campaign for Sharpie and I love all of his cups! They are for sale and can be viewed on his Flickr page.
The art piece below was done by another artist, Lawrence Yang, using ink and watercolor. His blog, suckatlife.com, has links to his art gallery where you can also purchase some of his art as well.