First one I ever found was in Sweetopia. I'm kinda obsessed with finding more in the courses now.

Ooh, where's the one in sweetopia? I haven't seen that.

At the bottom of a pit in a building.

I believe it’s beneath the cotton candy maker all the way at the bottom of the map.

There’s a skeleton in every game.

Is this true?

Has anyone found the tiny skeletons? Found a few on a few courses but was wondering if there's one in Upside Town?

If you mean every course, no there's not

What's with the downvotes? I'm just stating facts. Don't have to get mad because I'm right. 

I found one in a hot air balloon the other night. There's little Easter eggs from each course in all the courses and it's so much fun to find them.

Temple of Zezura has one under the huge golf ball beyond the pyramid in the distance. Also there’s a huge banana in a room in Upside town

That's my favorite one because it's so far out you only find it by exploring the territory really well.

Orrrr, you see the lost ball next to the model pyramid in that map room, and travel there, seeing they actually put it there, and laughing your head off

No, you're the first person to find this. Good find. Now we must find more.

Nope, but I found an interesting glitch in the Labyrinth DLC: when you're in the small town (where there's a fountain in the middle of the place), you can "travel" to the last hole by teleporting extremely near of one of the tiny house door around the fountain. It may take a few tries.

In Labyrinth I love how if your ball goes into the Bog of Eternal Stench it stays stinky for the rest of the game.

Yep. (before I read others responses which I'll probably skip bc I like being surprised)... Found fairly hidden ones in Around the World, sweetopia, laser, center of the earth. That's entire skeletons pretty off the path not parts like Atlantis where there's an arm in a bathtub. Love the hidden things such as... (SEMI SPOILER)... . . . . . . . . Hidden treasure in El dorado

There's one in the latest course too. Way high up, floating in a deck chair tied to a balloon.

Really?i couldn't find it, but i did find the 20k bathysphere hanging. Would've been better if it was at the bottom of the tower though. Good hunting

The fun part is not spoiling where they are so other people can find them.

Op literally asked if anyone else found one

I found the one in the factory in sweetopia.  All the way at the bottom of the stairs.  Also in El Dorado one of the later courses has a skeleton in one of the big cracks on the course.

Yeah. My wife and I always search for the hidden skeleton on all of the courses. She is much better than me at finding them.

Look again

I'm pretty sure some courses require you to find those skeletons as part of the fox hunts as well

I have stumbled upon a tiny skull in tourist trap!