they could be bubbly and fiery
and smelly,

like sulphur pits
( glued eel /questions/questionsyoudliketoask/post1648081, Mon 1 Jun 2009, 19:58, archived)

That'd be great rhyming slang.
"Cor, look at the sulphurs on her!"
( Druid, Mon 1 Jun 2009, 20:05, archived)