If you are at all like me, you hate to spend money on ski's that you hardly use. Plus you hate to mess with taking the wheels off because when you have time to fly, you waste time TAKING THE WHEELS OFF!
Here is something that addresses that. You can use coat hanger for the wire, or these have the wire used in drop ceilings.
As you can see you bend the wire and shove it in the front and TA DAAAA! you made a ski.
Not rocket science. Hope this will help someone.
Spanky

Ok...I like It...Way too cool...way too simple...How about some more drawings? I see that the wire is plugged inside the Coroplast. Does the "U" shaped piece over the wheek stick in the coro too?

Hi BusyBear
Here are the wires pulled out of the coro and set on top. As you can see it keeps the wheel from moving forward and back, and running along the sides prevents teetering.
The main gear picture I just drew with a magic marker where the wire is below the coro.

They work really good in the fluffy snow as well as everything else. After dorking it into the ground and busting the 10x6, the only prop available was a 10x7. That speeded it up just enough to pull the front of the ski's up during flight. It was quickly rendered by shoving a couple of pieces of wire in the coro for strength. I wouldn't suggest these for a 60 size without reinforcing the coro like that.

Spanky

check my add for the ski tire combo