face painting is a great idea.....my 2 yr old loves getting her face painted! Balloons are also good, just when they pop kids can get a bit freaked out. Plus if they do pop make sure u find all the peices incase one of the smaller ones pick it up & stick it in their mouth.

Definatly try not to put to many toys out. At DD's 1st bday, all the kids absolutly trashed my house. they drew all over our couch & the floor....it was a MESS lol!!(kids gotta love em hehe).

Keep it simple.....kids dont really care as long as theres cake & ppl to play with.
U could maybe do lizards for the boys?? They could have tails?
Im having thomas the tank engine as bit of a theme for DS's 1st bday in a couple of weeks.

Good luck with it, im sure ur dd & all the kids will have a blast!! Kids parties are so much fun hehe