Head: Doll house baby, cast by Rodimus
Body: Mega Blocks
Hands: Lyra (name?) Golden Compass
In my science fiction verse, Jax Ajax is the son of Percy and Bex Ajax. He hasn't yet been featured in any dio, but is likely to have an appearance in Season 2 of Joe's Cantina.
The figure is a decently articulated toddler, and is versatile enough to be used in other settings. One example is him inside of the mech in one of the pictures. I envision this as being a funny side story from time to time in the sci-fi setting.
The other benefit of the figure is that it can serve the dual purpose of being Knighthawk's youngest in my EXCAL Joe-verse.