The Gun Counter

I saw the same thing. Aside from forming some kind of keel or runners with epoxy or fiberglass, I was thinking that the person in the rear seat would have to have an oar or something else to drag behind the sled to keep it from spinning. It is a drag, but less so than the hand steering we used to do when we were kids and that wasn't too bad once you really got moving. This is the backup plan along with a refrigerator box.

What about piecing together runners with layers of cardboard and covering them with tape or epoxy? They could be assembled like the image below and shaped as needed to smooth out the steps and minimize the weak point at the tip.

Or like this. Less cutting and assembly. Same effect. Triple-walled sheets are 5/8" thick so It wouldn't take more than a layer or two to create the runners.

Coat the bottom with a high temp epoxy. If it's well below freezing coat with water and let it freeze, ice on ice is low friction. If above freezing heat the surface with a propane torch, layer of water is even lower friction. Put some sort of drag on the back to keep it pointed nose first, either a chute or snow anchor.

sounds like lots of fun. I think the top runners on the bottom and the lower picture inside for foot purchase and lateral rigidity. Says the guy mostly from Florida.

Follow the suggestions, after all the above (except epoxy, keep the costs down) drown it with Thompson's Water Seal (paraffin and mineral spirits, basically). I used big cardboard boxes (think upright Freezer) for deer blinds and used TWS and they'd hold up for the entire Ohio deer season!

Your 2 part epoxy with milled glass fiber mixed in for bulk is an adhesive....

Fiberglass resin, then wax once cured.

https://www.stihlusa.com/products/blowe ... ers/br700/

perhaps this as extra drive force

or perhaps as a distraction device?

https://www.digitaltrends.com/cool-tech ... -launcher/