[D] Is it possible to buy a standalone TPU? (Tensor Processing Unit) • r/MachineLearning

Google made these TPUs that are great for ML in tensorflow, however the only way to use one is to rent one on the cloud. Is it possible to buy a physical one to use at home/in the lab? Even if this isn't possible, I'm curious theoretically does anyone know much a single standalone TPU would cost if they were for sale?