I've spent a lot of time in the past 15 years turning photos into various kinds of prints. From Cyanotypes using printed contact negatives, via multi-layer stencil art to my current obsession: vectorizing images, separating the layers, machining linoleum blocks and then doing multi-layer prints. Once I have a stable workflow for lino prints the next think I'm going to try is to use mokuhanga instead of linoleum.
(I also plan to try platinum/palladium prints. They look gorgeous. But first I need to get better at shooting for B/W)