I did have another idea, but it involves a hammer drill, a 3/8” masonry drill bit and a 6” bit extender. Those may not be to hand.
I was going to try exactly that but I was worried about damaging the little silicon thingy because I don't have a spare.
SAK on your keychain. Don't leave home without it. Best wishes. G
With a lot of the people I’ve worked with in the past, the solution would be to insert a pencil into the other ear and keep wriggling it until it dislodged the earbud. Absolutely no danger of meeting resistance with most of them.
At least you managed to extract the offending object. Glad that didn't end worse!
Try joining a multitool related forum, to get some ideas on how to be better prepared next time.