Not as bad as some of the hacks in here, but here are a few recent ones.
1st is the power supply board from my LW3, Never noticed this till I removed the board to figure out why my 12V was only 10.4
2nd from a Congo I just finished up, the pins in the picture were the ones on the board, they must have melted the connector before, and they wedged a new partial connector on, it was an 8 pin connector, the first 5 were the original connector, the last three were that toasted mess you see, I had to pry the connector off the board it was on so tight.
3rd was from the monkey under the plastic center of the playfield.