I edited a mario model to have articulated arms and legs. Also it is 1 piece!

Check out articulated Luigi: https://www.thingiverse.com/thing:4099116

Some supports are required though.
Put supports to thumbs, ears and neck.
Careful around neck because you wouldn't want to limit its movement. In my setting one for each connector prints well.

I didn't care for the back of the model since it is almost flat and I am new with those hinges and didn't wanted to mess with them. However I also included the full model in any case.

I printed the purple one with a raft, 0.28 mm default cura settings. Blue one is a prototype.

Edit 1: Fixed head. You should print CE3_Mario2.3mf or Mario2.stl. There was a gap inside the head, now its fixed.

Edit 2: I finally fixed the model. MarioFixed.stl is what you are looking for. It also comes with supports. So everything is good now.

Have fun!