Craig & Karl?

 I think these pop art installations all over RWS have been commissioned to artists - Craig & Karl, but I am not certain because I don't seem to be able to find any supporting write-ups on the www. Neither does their web cast any light.Anyway, I've emailed the duo.... oh wait... scarly not done by them then how? errr.
Perhaps the next time I'm near of of those installations, I'll check the labels. Humm... doesn't seem to have any labels ley...

http://www.craigandkarl.com 
http://shop.craigandkarl.com 
http://craigandkarl.tumblr.com/archive