I used some bottle brushes with the rubbing alcohol, since they have a soft tip already attached to a handle, and one can bend the handle:
I've also seen these online. Might consider cutting the bristles off the sides?
A search for "Bottle Brushes" turns up many sources.
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88 Venetian Blue Coupe "B"--gone, but not forgotten
93 964 C2 Coupe "BNC" ("PNC" on some days!)--PSS9s, Big Reds, Strut Brace, Recaro SRDs, Schroth 5-pts, DAS bar
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