I'm going so see if I can get the old one
from him so I can rip out the innards and migrate it to an indoor penny
plane design.

YEAH! The first one I saw was the "Helix" which uses a tiny fan on
each side to drive it forward, backward and (differentially) to yaw
it. My first thought was that one of the tiny fan motors could fly
something between a mini-stick and an EZB!!! I've gotten the word out
to most of my friends that I want the wreckage of any flying toys.
As an aside. I flew models from 1960 to 2001. During that time I
flew U/C, RC, Indoor, and assorted outdoor FF. I had friends that
started taking flying lessons, and then we'd stop seeing them. I
swore I'd NEVER quit modelling. I started soaring in 2001, and guess
how many planes I've built or even flown since then......sigh.

Jim