I'm new to using Tinkercad, and hadn't tried a color change yet in Prusa Slicer so this was just a test for me to try those out.

The snowman body printed best for me with no brim.  I am sure it could modeled to be a bit smoother - but again just a test to learn.

Color change in the slicer for the eyes, mouth and buttons.

I left an indent for the scarf and nose.

Finally, the hat has an indent to attach it to the body.

A dot or two of superglue - don't go nuts or your get leakage - and it holds up well.