Every so often, a touch of funk will accumulate behind the top of my ear or in the outside corner of my nostril. I only get one pinkie's dab worth of smell, and then it's gone. I have no point of comparison for that smell, really.
Toenail funk is alluring, but sometimes too strong, I guess cause it builds up.
This is all my own funk, of course. These smells would disgust me if I whiffed them off anyone else.
Gas, or "petrol," is of course a given. Not really a weird smell to like...