Trying to solve sloping music desks on school Yamahas, the hinge bent over the years:

[@Gavinbrady-Pianotech]

I think you know that those rubbers will not survive more than 20 minutes in a school environment! Cool idea, though. I think you can order the hinges from Yamaha.

[@RobertsPianos]

Yes, thanks for your comment; that might well happen; We'll order some to take there next time!