glass skateboard deck?

my son is going through $40 wood skateboard decks at a rate of about one every 2 or 3 months. i thought maybe i’d involve him in a project where we would lay up cloth on a mold, probably an old deck, and make a deck that is as tough as a fin panel, and maybe last a year. is this logic flawed? anyone done it? i get the feeling that since i’ve never seen one advertised, there must be drawbacks. thanks