These are toilet paper dispensers. You stick a roll of toilet paper through the back, and pull a few squares out the nozzle. They cost £12.99 each. Link (Via Random Good Stuff)
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.