What I'd possibly do is make it a Hybrid, while keeping the generalized theme of a Fennec Fox, but making it more unique to you and more personal.

<-- Totally not bias to hybrids at all, totally not! No sir/Ma'am!
Alright alright, yes. I LOVE hybrids. Just saying. xD

Ohh, I didn't thought of that! Thanks, I'll try to consider this, even tho I wanted to keep the challenge of keeping him as a pure fennec but with a original design and body structure (is it hard to understand? I have a hard time explaining those kinds of things in english xD )

I'm just sooooo almost doing a pink fluffy fennec, this idea is starting to grow stronger on me
But I do love hybrids too, haha! We're the same on that one. ~

I think trying to personalize a Fennec Fox while also keeping it pure and original would be quite hard to do, in my own personal opinion, thanks to the amount of them. I think you could keep the body structure and overall theme, but add in some animals like.. A snake or something, to spice things up and to add in some quirky yet unique things.

I'll give yeh a bit of an example in this hybrid I have here, a Spotted Hyena/Horned Rattlesnake Hybrid:
http://www.furaffinity.net/view/16668857/
http://www.furaffinity.net/view/16739148/
http://www.furaffinity.net/view/16974299/


Ooooh. Pink'n'fluffy! Better be a femboy! :P
Ohmygodyes.
Great, now I wanna design hybrids with you now. v.v uuuugh *Frantic flailing*

Yeah, there's a lot of them, but they're just sooo cute. ;w;
Ohh I really like your design! But I have no idea what kind of hybrid would look good and still cute on a Fennec... This is really hard. xD

Yes sir! Totally a femboy, I'm weak for femboys <3
Yaay! We can do it sometime if you want! Designing characters is always fun! <:

I know right!? <3
Hmm.. I don't have much of an idea. I have a bit of a bias towards snakes and stuff so.. v///v Yeeeeeh.. xD I think a Fennec Fox + Snake would be fantabulous >~>;;

HNNNG yiiiis o3o
Lets. Do. It. NOW. Ohmygosh. <3