Hi N.! Well, I don't know how well this will work with 3 year olds, but my 3 year old loved it at her older sisters b-day party. If not, an idea for when she is a little older. We do "Freeze Dance". Kind of like Musical Chairs, but they dance and when the music stops, they freeze! You repeat this until the last one is standing. The kids love this! Other than that...the usual, "pin-the-tail" on the whatever your theme is, Simon Says, red light-green light-(good outdoor game)a pull string pinata-(you can tie this to something in the house because they just pull the string one at a time) or a craft always works too! (you can find easy crafts that already have all of the pieces @ the $99 store, Target, Walmart or any craft store). Also, if you are only having girls...they love to have their nails painted & kids make-up to put on. Well, I hope this helps a little! Take care & have fun!