Biohazard
Spent just a small amount of time in the garage today - have a lot going on (life) but managed to reinstall an interior trim panel and place some body plugs. The fun ones were the two that go under the rear of the car just behind the tires. I could see some junk wedged between the body panels inside near the hole but they were too jammed to come out. Apparently, flushing with water didn't get it all out.
The solution was to place the nozzle of my shop vac right up to the hole and bang on the lower part of the quarter panel.
You should have heard all the crap running through the vacuum hose!