Without a bore scope to look in the spark plug holes I can only hope I vacuumed out all the plastic.
After doing all the work with the vacuum cleaners I recovered about 20 pieces of black of plastic the size of BB’s or smaller.

When I have time I plan to remove the spark plugs and spin the motor over hoping any left over chunks will blow out the spark plug holes.
If there is any thing left on top of the pistons after that I hope it ends up some where in the exhaust system.

are you a busy man or is just a huge pain in the ass, junk the car kind of deal? did you try an air compressor?