After waiting for five weeks, the Chinese piston fountain pen I ordered from E(vil)bay finally arrived: the Wing Sung 3008. Its body is supposed to be inspired by the TWSBI 580 fountain pen and the nib from Lamy's. I must say I am pleasantly surprised by this FP that writes smoothly straight out of the box. The plastic might seem somewhat cheap and not very durable, but all the pieces hold and fit together quite well, and will last as long as it's being taken care. The value for money is incredible (less than £2 shipped from HK). It has a screw cap and the piston filler has some kind of mechanism that clicks when locked.