The picture I commissioned of Maffi is done!!! It looks amazing and I'm really glad to have better art of her now.
@RecursiveRabbit Neat to see there's a few other characters out there doing that sort of thing, though the friend I got my own inspiration from ( http://www.furaffinity.net/view/30648825/ ) said he got his own inspiration from someone selling tails like that on Second Life, so I knew they were probably out there waiting to be found.
With Maffi I decided her tailtip should just always be a SNES plug so she has to deal with adapters she'd carry in her inventory. Her own tech would just take her plug directly.