I was inspired by your post about lubricating knock off tangles. I used my bike chain lubricant (teflon/ptfe based) and it worked really well! It made my favorite colored knock off tangle easy and quiet enough to use in class, which I am thrilled about. I don't know how other lubricants smell but I have a sensitive sense of smell and it doesn't bother me much. There's a bit of an oily smell if I hold it up to my nose, but even then it's not overwhelming and I haven't let it air out yet.