Roger Long wrote:
What is the proper adhesive for holding teak bungs in so they can be
dug out again if you want to remove the trim? I can't believe I've
spent a life around boats without having this answer right at hand.
Too much steel and aluminum.

People use everything, varnish, white glue, yellow glue, west epoxy,
boatlife.

I use yellow glue (white glue on interior).

Maybe I'll learn something new from the other answers.