Decided to go with some custom acrylic work on an indoor pond I have, as well as on a small nano planted tank I am working on. So here is my first finished product (Second attempt) at an acrylic drop checker.
Basically I took a piece of acrylic tubing, heated it in the middle and slowly pulled the two pieces apart, allowing the tube to seal. Then I blew out the bubble and used salt to help the bend not deform. In the future I wouldn't use salt again, but instead heat the bend a little hotter than before, slowly make the bend while continuing to heat it, then blow the bend out gently to correct the kink.
Also as another piece of advice, the best way I have found so far to cut the piping (No cracking at all) is to use a Jeweler's Saw and a #2 blade. The blades are very fragile so you may go through a few, but they are meant to cut soft metals and have very very fine teeth, so dont run that much of a risk of cracking the acrylic.
Let me know what you think!