I can only think of two and they are acorns and helicopters.
They are most likely crab grass or just some inconsistency in your yard.
any where penomina is some thing happening if you look in your back yard you most likely would find remanints of rocks and fossils (in florida)
At an auto salvage yard most likely. You can also try eBay motors.
if it had feathers plucked it was most likely a raccoon
It's most likely for decoration.
most likely not
millipedes can live in your bin, our in the ground. (they are extremely hard to find)
what specifically is broken? most likely you could find the arm at a scrap yard and take that, or if it is more then the arm then you might need a new boot
You should be able to find a headliner at a salvage yard or junk yard. Most of these places have a network across the country and will help you to find what you are looking for.
buy planting the seeds in your back yard watering them as a normal plant is the easiest way and most natural way to do it.
It's most likely got a disease. It's a mammal so it can often give you what illness it has. Dont touch and don't let your animals eat it.
try a salvage yard, they will most likely be your best solution.