Actually it's all been done before:
Silent records for jukeboxes
In 1959, Billboard reported that three silent records had been placed in the jukebox at the University of Detroit so that people could buy a few minutes of silence. The article, quoting Student Council President Mike McCann, said that "future records will feature 'stereophonic silence' which will be 'twice as silent' as monaural disks."
A year later, Reading, Pennsylvania's Reading Eagle reported that the first week of January was Silent Record Week, "an international tribute to juke box peace and quiet." The article said that, in recognition of the event, the University of Detroit's 65-member chorus would appear at a concert at which they would not sing.
The article also mentioned that the University of Detroit's three silent records were so popular on the jukebox that they developed noisy scratches, so the records had to be replaced.