Interesting butter flavours

[StuartDunstan]

I'm planning on making some cultured butter for the first time ever this weekend. Assuming it all goes well, I'm trying to think of a few flavoured butters to make in the future. Any suggestions of interesting/unusual butters?
So far, I might do a smoked salt butter, and maybe try a hop-infused butter. Any other ideas?

[Juan1Moore]

Can't go wrong with Mediterranean herbs - light on oregano - garlic chives are nicer (I think) than garlic.

I think cultured butter holds up better to flavoring than sweet cream.

Hops sounds interesting.