I've seen one grow done in a washer- look up threads started by member 'chronic chrissy'.
If you are handy with metal-cutting tools, you could set yourself up a 2-room stealth system with mother/clone in one and flower (mini SOG) in the other. You will face the same challenges as any micro grower, with the addition of a harder-to- work with material, but if you have the tools, it's REALLY stealth- unless your mother-in-law is the sort to wash your table linens while she's visiting... "La la la, there's the washing machine, let's see, open it up and OMG!!!!1!! Who set this thing to 'grow pot' cycle?"