Thank you! I've been looking for a water-cooled laptop solution. I've tried the fan based laptop coolers and they're basically a waste of time (plus they add to fan noise). This is what I wanted. Nobody sells it, but I don't mind a bit of fabbing.
I had to rub a plastic bag of frozen peas on the bottom of my overheating x86 MBP to make an important zoom meeting one time. It made the peas inedible.