A few more ideas for keeping the kids occupied during the winter. Find paper cups of any size. I used large plastic cups from the gas station. Set them up as pins and bowl the afternoon away. Have the kids take turns setting up the pins for each other.
Plastic Cup Toss
Next line the cups up or spread them around in any patter that you like. Have the kids try and toss the ball into the cup. Use a smaller ball like a ping pong ball to make it a bit more difficult. Let smaller children stand closer to the cups so they don't feel frustrated.
Plastic Cup Golfing
Set the cups on their sides and have the children try to roll the ball into the cup. Use a stick of some kind if you would like it to be like actual golfing.