Uh, you go buy shit glasses for $10, good luck with that. We tried something similar once, and it was a fucking catastrophe, waste of time and money. Gave him a headache because the damned things were warped, like looking through a funhouse mirror.If he fucks up glasses that bad than buy him multiple spares at low cost. I bought some from this place just to keep in my car as a back up, they turned out to be really good
Buy Eyeglasses & Prescription Glasses under $10 - Goggles4u
Actually we usually buy him two pairs. He's not rough on his glasses, the ones he has now are like three years old, maybe older.