Found out that Latios on DeviantArt
Source http://flaming-albatross.deviantart.com/gallery/747055/Gijinka-Pokemon
If moemon get to the future gens I could see this one being used.
Not really related to gen 1 to 3 but I found those Gijinkas of gen 6.
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I found these Latias and Latios Gijinkas too.
[spoiler] [/spoiler]