On April 24th 2016 I made this new IUOMA logo with a 3D pen using PLA plastics (White, grey, black and brown). An experiment to see if you can construct any logo you want and have the object instantly in your hands.
On the backside of the object you can see the structure created with the white PLA which was the basis for the logo. I signed it with IUOMA 2016 which goes easy as well. On a brown wooden background the logo looks like this:
As you can see the plastic of a 3D pen gives an unique structure like the brush with paint. I personally like what ou can do with such a 3D pen and plan to make more objects. The time it too to make this object was about one hour.