We had a party for DD1 who just turned 3 on Sunday, kids ranged from 18months to 9 years. I madwe sure I had enough presents that every child got something and the one boy who was last that did not get anything we just said he got the surprise gift and had some spares he could pick from. Parents are a must to help play. We did a pinata too, did not blind fold the kids though. We also did a pin the nose on the lion put just for the fun of it, not for a prize.
I find just sitting them around a singing some songs is the best games for them.

Goodluck, I was absolutley exhausted after the party.