The Specimen Synth & Muffler Mouth Vocoder/Sampler
Two VST synthesizers I made with Synth Edit a few years ago. The GUI design was one of the funnest parts of building these. I just tried them out again and they still work and sound great. I will likely do some more recording with them in the near future. They were so much fun to make, I think I may start a new one soon as well.