This is certainly an interesting idea for a fundraiser that will have people talking for a long time. In order to have a cow pie bingo, you will need to find a farmer willing to loan out a cow for the day. You will need to find an area in which you can pen it in. Make sure to find an area where no one will mind the cow hanging out, doing their business. Create a grid by using paint or chalk and mark each square with a letter or number. Sell bets on which part of the grid the cow will leave a “pie” in. Have predefined rules in case the “pie” is deposited on a line, or it lands in multiple squares, while the cow is walking around. Have a concession stand with popcorn, chips, hot dogs, coffee, and soda to make extra money. There should also be entertainment while waiting for the squares to sell. After the squares are sold, turn the cow loose on the grid and wait. The winner should get a cash prize, or one donated by a local business.