Below are what I sketch during the flight..
Second version with floatable head
OK, sketch is easy, make it real is hard.
Some issue that I can think of:
1. Need a transparent tube which does not turn cloudy after long period in the water. Non tranparent will defeat the purpose of using lily pipe.
2. Secondly need to source for plastic screw, metal screw will scratch the lily pipe glass. Also need a way to create screw thread on the pipe. This screw will be used to secure the surface skimmer to the lily pipe. Need at least three.
3. Need some material for the bottom, the part that blocking partial of the inlet.