So I have been talking to several friends recently about a new skin for ezreal and they(as well as myself) would be willing to pay a a decent amount of rp for it. Basically its a super saiyan ezreal skin with a similar outfit to the one Goku wears from the dragon ball z series. I'm not sure about all the copyright issues and whatnot that would go into it but I think it would be a pretty sweet skin if riot could somehow find a way around it.
Approved
As long as it cost 750 RP we fine, for 
is unacceptable to have a skin beyond that price, (not counting Mega Man ezreal)
Although not a Goku concept, I have a Street Fighter concept for Ezreal that is not too far away from what you want: http://img.photobucket.com/albums/v709/stigtrix/Concepts/LoL/Martial%20Arts%20Ezreal%20-%202%20-%20RED_zpso4y0q4qx.png
Board post with different colours and an evil version: http://boards.na.leagueoflegends.com/en/c/skin-champion-concepts/yaxG0ar7-skin-concept-martial-arts-ezreal
