Actually, I remember a fakemon a friend and I came up with in high school: it was an electric/dark type, and it kinda had a Quagsire thing going on where it was really sleek, so it gathered electricity that way?  It also glowed in the dark.  That was its main thing, really.  I don’t remember much beyond that.

Then there was the flying-type Eeveelution I came up with waaaaaaaay back when I was but a wee Pokemon fan, and then Sky Forme Shaymin came out XD  Though it obviously came out long after I was but a wee Pokemon fan, as I was a not-so-wee Pokemon fan when DPPt came out.  Not that wings for ears is an original idea/is a thing that Pokemon hadn’t already done anyway, but still :,D