Moloko’s Vortex Salt and Pepper Shakers are beautifully minimalist — so minimalist, they have no plug and only one opening. To fill them, salt or pepper is poured into the top funnel, where it flows down into the inner chamber.
Later, when you want to dispense some seasoning onto your food, turning the shaker upside down will release only a pinch of the condiment onto your meal, thanks to the rather genius (and, honestly, inscrutable) retaining system built into the design. [Shapeways via GearHungry]