On eBay: Send an atheist to his local church!
Everytime I come home, I pass this old Irish church. I promise to go into that church every day– for a certain number of days– for at least an hour each visit. For every $10 you bid, I will go to the Church for 1 day. For $50, you would have me going to mass every day for a week.
Current bid: a whopping US $280.