've recently acquired a Yongnuo MC-36B remote from Ebay. Bit miffed as I was expecting something that looked very similar to the Canon remote, but the seller offered me a £ 3 refund and I couldn't be bothered to raise a paypal claim or the hassle of a return.
What you see is not what you get, but functions the same. Google MC-36B or MC-36 for what arrived.
So far it does exactly what it says, but I've not really played with the more advanced functions.