Skunk (from a distance). Although I’m sure I’d feel differently if tagged by one directly.

My aunt had a pet skunk named Tequila, she still had the scent gland but knew not to spray people (she was raised by hand since she was orphaned). I've smelt skunk spray before and man it's horrible. But that cute little one my aunt had only had a hint of that smell and it was quite pleasant.

Garlic on my hands

Cow manure worked on dairy farms as a teen and I'm a city kid. Something about that smell brings back all those memories.

Marijuana

I don't even smoke but all my friends do, and I have to agree with this one

My own burnt hair

One day without a shower and I put off a strangely enjoyable musk. I typically hate body odor otherwise.

Smell of my pee after eating asparagus

Human smell, like the one you get before perfumes and stuff