Originally Posted by Caddyshack

A complicated way would be a gear on the output shaft that the tps would normally sit on and an equal gear meshed running the tps, this would reverse the moment / motion. But that would take a bit of fabrication. You could use Lego cogs from Lego technic mounted on some metal or even mocked up all on Lego and glue the whole thing together and maybe put metal over top. The Lego models they use at legoland are often just superglued together.
A watchmaker or gunsmith could copy it in brass I suspect.