At Repair Cafe the other day, I had moderately successful day.
The thing I remember the best was some wired headphones, which I think lost some of its hacky (a piece of tape) electrical-insulation. Very simple construction, nothing more than a couple speakers in some snap-fitted plastic.
Also there was a cassette player in a casette/radio/CD combo unit broke. And I found myself recommending laserprinters over inkjet, due to heat damage in an existing inkjet.