Just drop over one of the side screen arms of your obutto r3volution gaming pit and you can hang your headset with cable there. Tested with Slic3r, KISSlicer and tailored for a Asus Orion headset, but should work with other headsets as well.
Modeled in Sketchup free version, checked with Solid Inspector plugin. Requires a large printbed of at least 210mm in length! Printing with support structures is highly recommended.