A company (or individual(s)) modifying ink-jet printers to drink from a reservoir instead of aa tiny, expensive cartridge. These folks will probably get slapped with a lawsuit by Epson; modifying and reselling a product will, most likely, violate the DMCA, enrage the MPAA, and be declared an act of terrorism in 43 of the lower 48.
But, they’re a great idea nevertheless.
I’ve been out-of-country since the beginning of June, and will be wandering England for the next week and some. Regularly scheduled programming may return at some point. 