While I'm not sure I subscribe to the "Jar Jar is a Sith" theory despite some compelling evidence, recent art by remthedeathgoddess on DeviantArt certainly provides a believable view of what the real Phantom Menace might look like.
* Movie Heroes Jar Jar Binks
* some modelling clay
* some material
* Citadel "Zandri Dust", "Chaos Black", "Skull White", "Mithril Silver", "Bleached Bone", "Codex Grey", "Bugman's Glow" paints