This is a simplified 2D Baymax. The original printed size is about 3.5"x3"x3/16", and you can add some magnetic tape on the back to use as a fridge magnet. The other file is variation for use as keychain or luggage tag.
For transparent PLA, use LINE infill pattern for the best effect
For one color printing, use the black sharpie marker to color the outline of Baymax. However, if your printer can do two color printing, then use black filament to print the top layer.