I jungle Shaco in TT every time he's not banned. Almost 100% win ratio and I've played him up to 1550 rating.
If you can lane morde until picking up a hextech you can jungle with him comfortably the rest of the game. My team uses a strong early jungler until that point then swap when needed
http://leagueoflegendstierlist.blogs...tier-list.html is a list of viable junglers. It isn't 3's specific, though. But should give you a good idea who can viably do jungle and get out with ability to gank/contribute to the game.
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