I've been trying out some monoprinting at home, to see what results it might produce.
This is what I did:
Monoprinting basically involves painting (with water soluble printing inks) on a water resistant surface (I've used glass).
I placed a printout of a photo of mine (taken in Borough, London SE1) underneath the glass, to give me something to paint over as inspiration.
Using either: neat ink, slightly diluted ink, ink that I scratch into, or ink that I apply then wipe off - I created my image.
I then place either a dry piece of paper onto the inked glass (or a piece that's been soaking for a few minutes in water but with any surface water wiped off before printing).
With a small roller (normally used for linocut printing) you give the back of the paper a few good rolls.
Carefully lift up the paper and voila! Your print.
Monoprinting is so called, because each print is unique, a one off. You can try to get two or three prints from one 'inking' but they will each look significantly different to your first (but still interesting if you're lucky).