Yeah, the shaman MC feat is really neat for the purpose of having extra blockers on the field.
I have a Rashemi Wychlaran LFR character that took it. A summoner wizard. Her spirit and all her summons take the form of winged monkeys. Will probably also take a familiar when she has spare feats.
A witch from the (unapproachable) east with flying monkeys. Not everyone gets it.
There's a guy that I've run across at game days that has a 6th level fighter with a Giant Lizard Mount. When he uses Rain of Blows, his mount gets an attack for each one he makes, making 8 attacks total in one round. Then he uses a power jewel and does it again the following round (or the same round with an action point).
Pretty ridiculous. Effective, but ridiculous.