Here's a fun way to change up the indoor play a bit during the winter months: Create a Homemade Car Ramp (and even add some pretend snow for extra delight!)~ Buggy and Buddy i would skip the messy part.
ANOTHER GAME TO PLAY WITH THE HERD- Ball Toss. Would also make a great "rainy day" activity. You could even find tubs or buckets of varying sizes (like nesting bins) for more of a challenge for the older kids (Think Skee-ball).