After seeing Nicholas Rehm's super simple tailsitting wing stabilized by his own designed flight stabilizer I just had to try making my own.
There were no plans as such but with the clue in the video that he made it from a single sheet of foamboard I tried to deduce the basic dimensions.
Here's the story so far...
(Hatcam decided not to work)

First challenge was to build the stabilizer from a Teensy 4.0 board and a IMU sensing board (bought 3 of these on amazon and the 1st two were faulty which was a bit of a head scratcher.)

Nicholas's YouTube channel is:    / @nicholasrehm  
The tailsitter episode:    • Taming the TailSitter: Hover to Forw...  
GitHub for the stabilizer: https://github.com/nickrehm/dRehmFlight


Short clips used with permission for the man himself: Nicholas Rehm.