What I did with the little bits of orange was first I stuck in the nozzle of my vacuum cleaner (yes, I bought the Turbo Tiger that you saw on those informericals
) and cleaned it out a bit. Then I bought some compressed air/gas in a canister from Office Depot and that did the trick. Spray it out with the air .. then wait a little, blow in - then spray again ..shake the corner/tailight whichever you are doing a little and spray again. The spray should do the trick, just keep trying and if there are large chunks, just try to shake em out and finnish off with the air again.