CowParade is an international public art exhibit that has been featured in major cities all over the world. Fiberglass sculptures of cows are decorated by local artists, and distributed in public places such as train stations, important avenues, and parks. They often feature artwork and designs specific to local culture, as well as city life and other relevant themes. After the exhibiton in the city, which lasts many months, the cows are auctioned off and the proceeds donated to charity.

Each cow is delivered with a little card that shows where it was exhibited and the name of the artist who painted it. The sizes vary depending on which model is chosen.

http://en.wikipedia.org/wiki/CowParade