A different and interesting idea for a new challenge. Well done!
It looks a bot like one I've taken a phot of and I thought it might be Lycoperdon pyriforme - puffball. The one I took was light brown though but a similar shape.
I have always found them in the alpine area of Australia and I have never noticed a smell but I've also never tried to smell one.
Well done those who guessed plant matter. It is the curled leaf of a pandanus plant in Tasmania, Australia.
mould on grated cheese
Yes, it's actually the spines of two echidnas.
Uncle Jack: A gaggle of zippers.
Top of a mushroom.
Close up of a curtain.
Sea worn rock
part of a motor
I love your frame!
Clone out the cord or black line.
I would also crop the foreground and make it more of a panorama.