Cool gadget alert!

surface-dial

This one looks really neat.  Microsoft has released Surface Dial.  This is a hardware device to use with your Surface (TM).  It allows you to rotate objects, scroll through lists, turn sliders and all the other things you need your thumb for normally.  It takes creativity to a new level and has tons of practical application as well.  It can be found on the Microsoft store and retails for 99$ CAD.

https://www.microsoftstore.com/store/msusa/en_US/pdp/Surface-Dial/productID.5074013900