We weren’t able to take pix inside the Puget Sound Blood Center bus that’s currently parked outside West Seattle PCC — somebody was there and donating when we stopped by about half an hour ago — but the bus itself is fairly photogenic (go see the skateboarding blood cell on the back). They’re supposed to be on break 3:30-4 pm, but if you can donate, go visit between 4 and 7, to help make sure our regional blood supply can handle whatever the holiday weekend throws at it. It’s in the southeastern section of the parking lot at Stevens/California (map). If you’re on Twitter, follow PSBC at @bloodcenter.