Kinect and draggable objects

Has anyone ever been tasked with creating ‘draggable’ objects with a Kinect? Because of familiarity, this is something I could easily accomplish in Unity but need and want to use TD. The general navigation idea is that a tracked hand icon when over a 3d object would trigger a short 1-2second countdown delay after which the 3d object would be draggable by a user’s tracked hand. Fairly common in Kinect installations for navigating menus, etc.

Not sure where to start…any suggestions appreciated!