Scotch Yoke Mechanism
Hoeken straight line linkage mechanism - CATIA - 3D CAD model - GrabCAD
leonardo da vinci magnetic wooden toy with the heart and the house
Catapult : DIY using pingpong balls
Hmm link is to purchase, thinking not too hard to build
wooden trigger mechanism - Google Search
Imgur: The most awesome images on the Internet.
This Melbourne cafe by French designer Sasufi features a 12 metre-long wall covered in timber offcuts.