Restricted Section Book Club discussion

With all the #lovewins rainbow flags made up of books that I've seen on Instagram today, I thought I'd tried to make one just from books that have been chosen for the Restricted Section.

The best I could do was five out of six. None of the UK editions I own have a yellow spine (our "Mr. Penumbra..." is blue unlike the US edition):



Not to be defeated, I found the only book with a remotely yellow spine I seem to own - volume 1 of "Stumptown":



Can anyone make a full six-colour rainbow flag with just Restricted Section books?

Great idea! I'm going to go look at what I have.