Re: Foglight disassembly
Get a rubber tube small enough to go in the hole, put one end in your mouth, put the other end against the cap and suck. The part will be held against the tube hole and you can pull it out. The tube is obviously smaller in size than the cap. Do not suck up any glass shards.
Bigger items can be held against a larger pipe on the vacuum cleaner, just tape a suitable size pipe to the vacuum hose. You may have to make a hole in the tape area so the sucking pressure is less. It works.
Those tools with spring claws on work as well if the area is large enough.