LASERmecha_4000.wsz
Other ones I liked:
Spoiler
https://skins.webamp.org/skin/9eac900685e05104b45ea6aa9b2009e6/Kevin_.wsz/
https://skins.webamp.org/skin/ef1b32f92fa26e824156ceb2929097e0/Gundam_wings.wsz/ I actually found the one I picked by searching "Gundam," this one and the one above almost made the pick.
https://skins.webamp.org/skin/6d232cc66940af3f05c91c977916be2f/GBJ_-_The_Hand.wsz/
Not to mention a bunch of the anime ones--I'm not ashamed to admit I liked the Lilith_Crucified one.