Wave
thingiverse
My version(from scratch) of the wave siphon toy by egant on shapeways https://www.shapeways.com/model/1291002/wave.html?li=search-results&materialId=6 It doesn't work as well though. Instructions to operate are on the shapeways page for this object (mine works the same) Siphon liquids with ease! This is designed to siphon liquids as soon as you place this over the edge of a full glass of water. You must fully submerge the bulb at one end of the arch for it to work. DO NOT USE TO SHARE DRINKS!!!!!!! You know why... Instructions I made this in Tinkercad. I plan to make a better one soon.
With this file you will be able to print Wave with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Wave.