I found this Festool design (obviously a study) by German industrial designer Sarah Böttger:
Although it really doesn't fit any recent Festool design, it looks interesting.
For more here's the site:
http://www.sarahboettger.com/10-0-Festool.html

Although it really doesn't fit any recent Festool design, it looks interesting.
For more here's the site:
http://www.sarahboettger.com/10-0-Festool.html