We were making aquariums out of materials that, while they looked appropriate, were perhaps not sturdy enough. There were three or four parts comprising each coffin-sized plexiglas case, but occasionally the filtration system was sending surges of too much water upwards at times, and we were concerned about leaving them in a room, filter on, alone. About malfunctions, accidental flooding.
Then there was one in which I was somehow creating maps or sets of directions for sea creatures; jellyfishes, crustaceans, cephalopods. There was something like a computer through which they could request help finding one another in the ocean, and my job was to fashion a map or drawing or set of instructions for each. My waking mind cannot conceive how this would be done, nor recall how I did it in that place.