David Shrigley creates ironic art. His work often questions the nature of the contemporary art world and the people who are enthralled by it. Other times, he makes some really random stuff. He hails from Britain but he sure doesn't have "British humor" (I put that in quotations to point out the stereotype, not to take a jab at the Brits).
You can learn more about Shrigley here. Or, if you so desire, you may spend $1200 and purchase this solid brass tooth by Shrigley... for me.