Techniques that modify traditional input devices (e.g., traditional computer mouse form factor) to interact with the virtual reality (VR) devices are described. Such modification allows the VR devices the ability to track the position and orientation of the mouse in the 3 dimensional (3D) VR without requiring extensive complex hardware typically included in VR motion controllers. Specifically, the traditional mouse form factor may be merged with 3D constellation based tracking elements (e.g., LEDs) with minimal form-factor modifications. The constellation tracking elements may include a plurality of fiducial markers on the mouse that may be detected by an imaging sensor, and thus allow tracking with a single imaging sensor (e.g., either head-mounted or fixed position).