Christmas gift for my Cats?

Okay hi i have 6 cats and its quite snowy where i live so i was thinking of making a husky sleigh for my cats so when we go get groceries they can sleigh them back for me, i have never seen this done before. Also i would like to make small gladiator chariots for my cats for when they are indoors they will look so cute. What do you guys think? Have you made anything similar?