To me it looks like the Jiffy Pop Popcorn things that you put on a stove top.
Somehow, this reminds me of the combat jet aircraft that carried an inflatable raft in the cockpit in case the pilot had to ditch over water. The result was several crashes that occurred when the device accidently inflated while in flight. The solution was to give each pilot a dagger, mounted near the control stick that could be used to deflate the raft. I wonder if the ISS is so equipped?
To me it looks like the Jiffy Pop Popcorn things that you put on a stove top.