This is a video taken during the descent of one of our cups. Some were sent to a depth of 2,000 m. The cup was attached to a CTD rosette, which is used during scientific missions to measure among other temperature, salinity and oxygen concentration in the water column. We used it to make them have a true encounter with their drifting inspiration, and withstanding the ambient pressure of 101 atmospheres.
Read more about the porcelain cups here.
Find them in the shop.