I have also created a couple of units, the Aramon Flying Nun and the Aramon Big Bertha. Neither one is actually intended for general use. The Nun was created as a joke, and the Bertha was just an experiment. However, you are welcome to download them, play with them, modify them, etc.
Here's a real unit. The Taros Summoner Spirit is an inexpensive assistant builder. It is an undead, flying, first tier unit which isn't able to build things alone but can assist any other builder or factory. It builds at 1/5 the speed of most builders.
My email address is mike@ossmann.com. Visit my home page.