Looks to me that 80% of the problem to be cheap plastic, sold by our local merchants. (A laundry basket holds up better). I don't see aluminum cans or bottles scattered about. How about a CRV attached to the sales of these sleds.
The local merchants charge a nominal fee, as do tire dealers, for the disposal of the product they sell. It's simple, you simply brand your product for identification, charge 3-5 bucks for sled redemption value, and offer a refund for returned products, broken or not. Most people do not want to take a cheap broken piece of plastic back to L.A.