Remix of "Giant LEGO carbonite Han Solo by rcaslis" + Keyhole Slot
(which is a remix of a remix of a ... "Minifig Han Solo in Carbonite bySixCrazyPants" https://www.thingiverse.com/thing:813203 )

I added a pseudo keyhole slot for wall mounting using TinkerCAD. It was a quick, minute edit/fix before printing, which is why I'm calling it a "pseudo" keyhole slot since it's not structurally correct.

I used a rectangle and a wedge to cut out a slot in TinkerCAD. The wedge extends over the rectangle to make the space where a nail would fit (like the roof of a house extending ridiculously far from the structure). The wedge should make it so supports aren't needed. Although, since that part is against the wall, it would be noticed if it's a little messed up.

The original "Giant LEGO..." didn't look very giant when I opened in Cura or TinkerCAD, so I'm not sure what percent it was printed in the original. For the sake of time and material, I decided on 180% which brought the height from approx 40-ish mm to 80mm. That's also why I went with a 0.28mm resolution.

0.4mm Nozzle; 0.28mm layer height; 0.5 line width (125%); 2 walls; 3 top/bottom layers; -0.2mm initial horizontal layer expansion (to help with elephant's foot); Temperature 200/50 with 55° build plate temp initial layer; 40mm/s print speed; 10mm/s initial layer print speed (to help with adhesion); 20% infill. FYI: I was intentionally going for a slightly faster/low-quality print.