Blow up many different colors of balloons. Place scotch tape upside down in a band around the hand taping it to itself. Then yell out a color. Your child(ren) will try to stick as many balloons of that color onto their hands. The one with the most balloons wins. Great way to teach colors and to learn counting.
Variation: try scotch tape on other areas of the body like a leg, foot, or rear-end to make it more of a challenge. Don’t use duct-tape or stronger tape or it will pop the balloons when you try to take the balloon off.