Here’s a hand-operated portable espresso machine capable of producing 16 bar of pressure using only the hand-pump.
With Handpresso Portable Espresso Maker, just add hot water into its 50ml water reservoir, put the Espresso pod into its chamber and let go of the button. The Handpresso Portable Espresso pressure chamber then forces the hot water through the coffee, creating a perfect small cup of strong and rich black goodness.
– $129.99 at thinkgeek