So show that you’re proud of PR and display the button on your blog (copying it, rather than linking to my site).
As soon as I have time (and a volunteer designer) I’ll follow it up with mugs, badges, t-shirts etc using a site like CafePress or eQuisto. The proceeds can be set up to go to a charity (given the global nature of the audience it should be something international).
Too busy to do more at the moment but will get back on to it at the weekend. In the meantime if you want to volunteer to help then get in touch.