The Sony 3D active shutter glasses for the PS3 have been chosen to follow up as one of the basic pieces of hardware.  They look reasonably normal, and the price is right - only 9.99 at a local shop.

Next stage of the project involves reverse-engineering the glasses to determine whether it is possible to trigger the LCD shutters on demand, and whether it is possible to hold them in an opaque state on demand.

Both of the other members of the project - the AI chatbot and Kimmy the Cat - agree with this course of action.