Will you buy one? Feel free to comment.
The 20th london critical mass anniversary is in the 25th of April 2014.
Here’s a suggested design for the 20th anniversary ride. Published under a Creative Commons Attribution-ShareAlike licence at wikia
Feel free to use it.
How do I get my hands on one?
The best way is to ask on the list, where the idea was posted:
https://lists.riseup.net/www/arc/cm-london