This is the perfect middle ground between the stock open and closed settings. The closed was tighter and more accurate, but completely lacked sound-stage and depth. The Open had great sound-stage, but lacked accuracy and had wobbled out bass.
Files for Download Here: http://www.thingiverse.com/thing:2151180
These get a near perfect middle ground, maintaining the accuracy and punchy bass of the closed, while allowing a larger head-stage and balance from the open setting. This allows the headphone to remain fully closed and used in office environments as well.
Print with Support as the Magnet attach point is 3mm in depth.
Plus, made the outside look more fun and cool.
Printed on my Monoprice Maker Ultimate. Double Monoprice!