I did a google search and found this one from Hambo:
Sled | Hambo Stamps – Digital Image Store
If you look at google images, and there are a bunch with kids and critters on sleds:
Hope you can find one that works for you!
The Crafty Sister
Designing for: YourNextStamp, CCDesigns, WhimsieDoodles, SketchSaturday, ARandomFan