Me. Amazingly, it doesn’t stink.
.
I knew folks that did research on captive kangaroo rats. The poop isn’t an issue. The pee is. As desert critters they conserve water and excrete #1 at very low volumes, but what they do produce is apparently incredibly potent. I believe it is most concentrated urine of any mammal.
Yeast poop is delicious!
goats have relatively inoffensive poop, much like that of rabbits or deer.
Bee poop.
Parakeet poop. Very small, dries in a few seconds, doesn’t smell.
Parrotfish eat coral, and poop fine white sand.
Horse poop is nothing great to look at, and I wouldn’t want to touch it on principle, but I honestly like the smell of it.
I read somewhere years ago that what gives feces that distinctively unpleasant smell is animal fat in the creature’s diet. I don’t know if that’s true, but I do know that (POTENTIAL TMI WARNING) entering the bathroom after my vegan girlfriend’s been in there is nowhere near as awful as going in there after omnivorous me.
Seriously, how can this not be the answer? Other animals may produce poop you don’t mind having around, but how many animals make poop people pay hundreds of dollars to drink?
I LOVE the smell of horse poop!
I was going to say earthworm poop but I think virus poop is pretty inconsequential.
They balance out the cute inoffensive poops with nasty as hell urine. I think it’s as bad as unneutered tomcat pee.
Can’t say I’ve noticed anything nasty about it. The worst I’ve experienced is maybe a very mild, vaguely seaweed or mostly-fresh-fish-like odor when cleaning down to the bottom of a litter box that hadn’t been changed out in days. I cut that out by using plastic bags as litter box liners, so I can easily change out the box near-daily and not leave any mess behind. I guess it could be diet or maturity based.
I know the spray of an unneutered male is supposed to be terrible, so perhaps that has some kind of an effect. One pet bunny snipped, one to go.
I’ve never seen one poop, but I’m gonna guess that they need to wash the beans off first…
Excellent username/post match!
Really? I thought this combo was … maybe not better, but certainly interesting! 
Silkworms? They seem to eat nothing but mulberry leaves. The resulting poop is tiny, dry, and odorless.
Cow Dung by far.
Elk!
Neither its voice nor its poop match this animal.
Makes you wonder what Rick Astley leaves behind…
Panda poo is about 80% undigested bamboo, which wouldn’t be too gross, comparitively.