At work, I used Moleskine notebook (Pro model ... or not) with hard-cover. When I went to meetings, I ofter lost my pen in the corridor... result: nothing to take notes, except paper. I designed the MOLESPENNY object to avoid that. Just slide the Molepenny once on a Moleskine hard-cover corner and you can now clip your pen ! For customization purpose, you can also have your NAME on it (or Company name for promotional object) NOTE: This was designed for a Moleskine hard-cover and a BIC pen. To be adpated if the cover thickness is different or if the pen diameter is not the same. NOTE 2: To design the text, antoher "Library" is used : http://www.thingiverse.com/thing:16193 NOTE 3: Additional information can be found on http://wiki.zgur.net/index.php/Molespenny NOTE 4: This design is an Open Source design. However, if you use it, I would appreciate a small message ! :) Thank you !Download OPENSCAD tool : http://www.openscad.org/ Open the Molespenny.scad with OPENSCAD Look for the line : write("Nekloth",h=5,t=2,font="orbitron.dxf",space=1.2); Replace Nekloth by your name or company name. Press F6 key to generate the STL file Click on menu Design > Export as STL...