Every workshop needs a good coping saw, but why buy one when you could make your own? It might sound complicated, but all you need are some plywood scraps and a pair of screws.
According to Popular Mechanics: "Coping saws are the smallest of saws, used cut delicate curves in wood. They work like a jigsaw but the smaller teeth allow greater precision and less tearout.
This coping saw build is made from plywood scraps, and shaped by a multitude of sanders and other saws in the Paoson Woodworking shop. But you can build this saw without all of the fancy power tools. You just need to cut out a u-pieced shape of wood and attach it to a handle. Smooth out all of the edges and drill holes in each end to hold the adjustable bolts which secure the blade."