My first DIY speakers were large transmission lines, and at some point I partially disassembled them to adjust the stuffing in the lines. One of them had a couple of handfuls of dried corn inside, evidently some mouse's stash. The barn where we kept the dried corn was about 200 yards away, so I had to admire the little guy's work ethic...
But not enough to prevent me from stapling mosquito netting over the ports to keep it from happening again.

