How can I make my wedding reception traditional and non-traditional/creative at the same time?

I would like to incorperate some non traditional events during my wedding reception that will be held August 13th 2011 @ 4pm... What types of things could i do on a low-ish budget. I am 21, my fiance is 23 and i have a 3 year old daughter. Our reception is going to be alcohol-free, so keep that in mind, please.