The Enigma Puzzle Box. Can make them as kits, Plain boxed that they ca paint or sticker up then have the wiring all pre terminated with plugs and they then put it together and make it all work.
Enigma - Das Geheimnis (Blu-ray), Blu-ray Disc
Or should I say Tablets worth reading! :) These tablets are transformational, full of hope, light, love and guidance. The Emerald Tablet - Thought to be the earliest recording of human awareness of the law of attraction.
Benedict Cumberbatch in the New Poster for The Imitation Game - movie English mathematician and logician, Alan Turing, helps crack the Enigma code during World War II.