road debris

While out riding just over 22 miles yesterday morning, I happened to think about all of the road debris I come across. It isn't just the muck and grime from tires, oil, sand and gravel. It often is items you wouldn't suspect you'd find on the side of the road. Examples:

spark plugs

batteries (AA, C, 9v)

condoms

misc. car parts - bumper parts, license plates, door handles

credit cards (!)

All of these things can make you wreck if you didn't see them in advance. What have you found on the road that you didn't expect?