My family has a collection of home-made jigsaw puzzles (literally made by a guy cutting up a wood-backed picture with a jigsaw) which look similar in terms of s

My family has a collection of home-made jigsaw puzzles (literally made by a guy cutting up a wood-backed picture with a jigsaw) which look similar in terms of shape to that (but more pieces, 500 or so). I think they are much more interesting to solve, especially since the contours often follow the shapes in the image, which adds some twists in the difficulty. I would also be interested in finding a way to buy such puzzles nowadays (especially since they would in priciple be easy to produce through laser-cutting).