Defeating the DRM on your old vinyl
How to copy a vinyl record
Neat idea, but in the comments is: as the owner of a vinyl pressing and dub cutting company I can categorically say that this will not work. The silicone would be cut apart on the first play by the diamond tipped needles you find on record players, also it would not have the necessary rigidity to have the sudden sharp peaks and troughs needed to create the proper vibrations in the needle.
Still, I'd like to try it. Not on one of my records, but that's what garage sales are for.