I finished my Mk 1 version of this Iona PKE Meter back in September, just in time for the Rose City Comic Con.
Here's video of the finished prop:
https://www.youtube.com/watch?v=gct2NALXWS4&t=17s In the default mode the lights chase slowly when the wings are half up and fast when they're full up. Touching the upper left contact switch activates "classic" mode, where the light chase is controlled by the potentiometer in the handle. Touching that same switch for two seconds turns of the audio amp.
Here are the guts:
Unfortunately, the Teensy 3.2 microcontroller that drives the electronics has been impacted by the chip shortage and won't be available again for months, so my coding partner and I are looking to use an Adafruit ItsyBitsy instead. He's working out the code, and I'm working out the components. The hope is to build in the ability to switch between the GB1 and GB2 chase patterns. I'll have to redesign the circuits and a new PCB.
Now that I've worked with this configuration I want to tweak the shell design a bit, make new silicone molds and new casts. These batteries were NiMH in an attempt to replicate the original prop, but I didn't use the right size, and they're being more hassle than they're worth. I want to use a LiPo battery of some sort to free up space in the main body to accommodate a bigger speaker.
The wings are 3D printed, and they're working pretty well.
So maybe we'll have kits ready in the 2nd quarter of 2023? No promises.