So it was by way of that link that I found the Brooklyn Brainery, which I had not noticed before though it's right here in the neighborhood. It looks like a pretty neat place, and I look forward to checking it out.
From their website:
Brooklyn Brainery hosts cheap classes on anything and everything.
It's a place to experiment with all the things you've wanted to learn but just haven't gotten around to yet -- thinkbook clubs on steroids.
We're located in Carroll Gardens at 515 Court Street, a couple blocks from the lovely Gowanus Canal.
Their course catalog is HERE.