yes. a small ball of blue fluff. my t-shirt/merino jumper are blue
evidently it migrates to your navel because the hair on your stomach grows upwards and the fibers travel up along them as your clothes rub across them.
dunno if that’s true or not.
Still to get rid of my winter flab/coat so getting to the bottom of my belly button is a bit of a reach at the mo. Will report back if I can get mrs sturm to check for me.But there is usually something in there.
I would bet anyone on here that they couldn’t tell the difference between the smell of freshly sucked fingers after eating wotsits and my belly button cheese. Even straight out of the shower. It’s a scientific mystery. No fluff though.