Are you proud to be on Thingiverse???
Make your customized card and take in your wallet!!
This card generator reuses code from Subdivided surfaces (http://www.thingiverse.com/thing:1693518)
You can also customize a card without Thingiverse's logo, for general purposes.
Tested with PLA at 0.2 resolution 100% infill
Hints for printing in 2 colors:
Card thicknes is 1mm
Engraved text begins after 0.4mms. Change filament at 0.5(for 0.1 resolution) or 0.6(for 0.2 resolution)