Functional Dragon eye2 from How to train your Dragon, Race to the edge. it only works with one lens and each lens has a different projection. You need to buy another stuff to make it funcrional, for example a battery with a charger, relay, LDR, transistor N2222, two magnifying lenses, alkaline batery AAA, a powerful LED light... between the images there is the electric circuit I made. for the eyes, I used epoxy resin, but if you can't make it out of resin, I have uploated too a stl. file of the eyes. 3D models only.