This hollow snowman looks great with his dilapidated top hat and an LED inside his body. 

The body looks great when printed in matte white PLA with fuzzy skin to simulate snow. Print him standing on his head for supportless print of the body.

The hat looks great with matte black PLA. Supports are needed around the indexing pin. It can be left free to rotate or glued.  

Body: 0.2mm layer with exterior fuzzy skin, 5mm brim around the head for stability. Print inverted to avoid the need for supports.

Hat: 0.05mm layer height to retain detail of the dented hat. Print right side up and use supports around the indexing pin.