Would be neat if somebody could take large sheets of plastic heat them and vacuum form them to any wagon making a one piece liner unique to each wagon.

Sort of like how they vacuum form acrylic bathtubs and spas

https://www.youtube.com/watch?v=vrCqbuli78c

Another million dollar idea for somebody to take advantage of. 

Still waiting for somebody to pick up and run with the idea of hearing protection with built in USB port for a micro flash drive that can play MP3's directly instead of relying on the dangerous dangling cord between the MP3 player and the headphones. Numerous emails to manufacturers has yielded zero interest.

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