I have a shiny Togekiss, Deoxys, Pichu, and Quagsire.
Togekiss is lv. 95-ish. Partially EV trained; max EVs in defense, otherwise untouched. Unsure of the nature right now, as it is on my HG cart. If I recall, it's male. I got it off of the GTS as a Togepi (Lv. 1) so I can only assume it's legit. My guess is the person who hatched it didn't take note of it being shiny because they were novice and the color swap is subtle, but you never can tell.
Quagsire is relatively unknown to me right now as it's on my Pokewalker and has been since I caught it some months ago in HG. All I remember is that the nature and stats were sub-par at best, but it's pretty to look at, even if it's not made for anything more than extremely casual battling.
Deoxys is Lv. 30, Adamant, untouched. It's Japanese origin, as far as I can tell it's legit. It's from Birth Island, and I assume soft reset for shininess. I got it off of GTS for a Japanese Pokemon Ranch Mew.
Pichu is the Gamestop Pikachu Colored Pichu that unlocks the Spiky Eared Pichu. I THINK it's UT but I can't be bothered to look right now; I might have used it in a few in-game battles but no serious training.
I really have nothing in particular I'm looking for. I'd like to trade for other shinies, preferably ones I don't have. I'd like to raise them for casual battles so list the natures with your offers. It's fine if they've been trained as long as they're a low enough level I can undo anything that I want undone. No Eevees, no legendary beasts. Nothing whose shiny colors are too close to original colors. 5th gen shinies preferred, but I'll consider anything so surprise me.
I don't get on Serebii much so if you're genuinely interested in trading, send me an AIM message @ coloredenvious. I can't guarantee I'll get back to you if you PM me.