A6 Tech Holographic Advertising Board

So this idea was from the Warlayer Printing and Painting Group on Facebook. You cut a piece of 3mm thick clear acrylic to A6 size. You print overhead transparencies of whatever graphics you like, or clear waterslide decals, and adhere them to either side of the acrylic, ensuring that one side is printed mirrored, to give the illusion of a hologram. You then slide the acrylic down into the frame.

There's 1mm of clearance on each side and bottom, and 0.5mm thickness either side of the acrylic