I think I’ve finally figured out who Number Two is:
From a BBC 2 trailer in one of the the extras on Doctor Who and the Silurians (Amazon).
P.S. If this makes no sense to you, you must not be a fan of 1970s British sci-fi. If not, we can still be friends.
I’ve found two nifty “I drink your milkshake” t-shirts. This one is the best:
And this one deserves an honorable mention.
While you’re at it, buying this shirt will go towards saving the historic Hill Valley Clocktower.
Plus, this is a particularly nice execution of angels having the phone box.