nothing in the 4runner, but....
an old 82 celica ....
only bullet i ever found was a hollow point along w/ some paperwork that made me believe the owner was a sheriff
my 87 Celica GTS....
a ton of sand, that was my fault for sand blasting the %*&$@ out of the rear 1/4's to fix the rust
and the most interesting....
unknown year corolla...
never my car but when i used to do car audio, i was doing a deck, and a screw bounced under the drivers seat ... when i went to grab the screw i found three pairs of womens underwear. Luckily the girl was at least cute, yes i had to make sure i found out what she looked like after that!
as for your bee bee problem vacuum out as many as you can, then pick up some magnets at the hardware store and leave them in a few key places around the truck to grab the rest that may roll out when you least expect it.