Joshua's birthday

Joshua's birthday is coming up we are all excited. Joshua wants to have a peanut butter fight, I must explain. When you buy peanut butter in Kara it comes in little bags, they take all of the air out of the bags so they look like they are going to pop, Joshua wants to squeeze one so bad and have a peanut butter fight. I am not to sure about this. Maybe we should just stick with water balloons. If anyone has any ideas for games for a 7 year old birthday party just let me know.