I have some old lego plates that are quite scratched. They look rather dull compared to the newer pieces in my collection. Is there any way to restore (even partially) the shiny look between the studs?
I'd heard that using toothpaste can help smooth out transparent pieces, so I tried putting toothpaste on the plate. However, it seemed like it would be insane to try to rub the paste manually between all the studs... so I used a nylon brush to brush the plate. That didn't seem to help much, but didn't make it any worse. Would it have worked if I'd manually rubbed the paste in? Is there a faster way of doing that?