Removing ramekins from a bain marie
A true bain-marie actually has a fitted rack or platform that allows water through, which you can lift out with handles. It's very convenient.

If you're just using a baking dish filled with water, I'd suggest getting yourself a mesh roasting pan with handles, like this one:



Then you can put all your ramekins on top and just lift out the whole rack when you're done.

If I don't have one of these on hand, I usually use a wide shallow bowl to scoop water out; you don't need to scoop it all out, just enough to firmly grip the top of the ramekins.

Some silicone oven mitts might also help; they don't get "wet" like regular oven mitts and so they'll protect your hands from the hot/boiling water just fine.