This is an Snowman with RGB-flashing LEDs.
The height is about 120mm
There is the snowman itself and a ground plate for LED and a CR2032 coin cell.
With on/off rotary switch.
You need a cr2032 coin cell and a LED. I prefer a RGB-slow flashing LED you can find on Ebay.
I used two LEDs for better shining.
Here is a video on youtube
Use lower infill for better shining.
You need a printer with good overhanging printing property. The hat is 15° to the horizontal.
If you printer is good calibrated, you don't need any post-printing. There are tolerances between the parts. So you can put them together just from the printer
I'm a 3d-printer from Stutensee (Karlsruhe) in Germany:
I have a Prusa i3 printer
You can follow me on twitter