This is a Wave Vase inspired by the well known Wave Vase from Zampik (http://www.thingiverse.com/thing:390713).
I wanted to design one myself, and i did with the help of Fusion 360 from Autodesk (great software).
Print in Spiralize mode with no top.
Mine was printed in 0.2 layers with 0.6mm layers at 30mm/s on an Ultimaker 2 Extended
There are two STLs, the one I printed is WaveVase_200mm.stl (the other one is the original design i made, i rescaled it in Cura to make it taller).