We did some techniques from butterfly guard. Got only two of them on video. The first one is a armlock/armbar from butterfly.
The one we did looks like this:
And here is another variant I found on youtube (I guess you can find as many different variants as there are grain of sand in the sea):
Last technique was a triangle from butterfly. I would personally never go for this one as a first option, but I think is good to know.
Hell, I am to tired to write anything about these techniques but I just want to go back and remember the details in a near future. Time for me to sleep, have to work tomorrow :))