Replying to Lexan on the bottom of skis?

I was reading a thread and it reminded me of this.  I was at lowes looking for lexan and asked this old dude where it was and he showed me and asked what i was using it for.  I told him for skiing and snowboarding and he actually had a really good idea:  instead of covering a whole box with lexan, thus spending alot of money, just screw pieces onto the bottom of old skis, and then you could basically slide anything you wanted to.  I think this could work really well, has anybody actually tried it?  Of course it wouldn't work too well when other people want to sesh with you, but it's an interesting idea for a pair of skis in the summer.