I came up with a Grass/Ghost-type based off of a wilted plant that evolves into a wilted tree. Phantump and Trevenant are not exactly wilted, but the concept of a ghost tree is close enough.
I came up with a pumpkin/jack-o-lantern, but mine started out as a pure Grass-type and gained the Fire-type in its final evolution. Quite different from the Grass/Ghost Pumpkaboo and Gourgeist.
I came up with a fossil T-rex Pokemon. While that idea is likely not unique at all, my concept was Rock/Poison. ...I think I prefer the way Game Freak did their T-rexes Tyrunt and Tyrantrum over my concept.
I came up with a tentacled Dark/Psychic-type based off of the Elder Gods (specifically Cthulhu), and it was meant to be a legendary on par with Arceus and focused more on special attacks, but can really go either way. I posted about it before: http://www.gamefaqs.com/boards/696959-pokemon-x/65398736 . Inkay and Malamar have the typing and tentacles, but their stats are a far cry from my concept.
This is interesting. Anyone else had an idea or concept for a Pokemon, only to see something similar actually become a Pokemon?
http://backloggery.com/SolarCrimson - My Backloggery 3DS FC: 1504-6082-4629 | Friend Safari: Fire - Magmar, Fletchinder, Larvesta