The deliverer would take a bunch of five to six balloons, a card and sing a song for the receiver. First of all, each member of the youth group raising money would decorate a jar with his or her picture on it. People then put donations in the jar of their choice. Next, all the money is counted. You hold a dinner for all those involved and the money counter announces who has raised the most money.
Someone has to be responsible for getting a cow, a real cow to the church.
The one who has the most money in their jar has to kiss the cow. You can also get well-recognized people to get involved. For example, your senior pastor, youth leader, etc. Have them decorate a jar of their own and the proceeds will go into the general youth fund. If they win, they have to kiss the cow.