try setting up a craft table is great for all ages, I did at my daughters party and it was a hit. Pat catans has a lot of foam crafts that all they need is a glue stick. You can also try something like they do at the carnival and put some ducks in water ( put colored marks on the bottom of them and matched it with a prize so everyone would get something) and then let them pick a duck. I hope that these ideas will help you good luck.
We made our own bean bag toss game for my 7 year old step daughters b-day and it was a hit for all ages. Purchase of cheap fabric, fill with dried beans, and then toss. You can have them toss into anything, a holoo hoop, bucket, anything.