OH MY GOSH. They can't be serious?!! Here is the explanation for Wenlock and Mandeville, the names of these creatures:
Wenlock is named after Much Wenlock, a village in Shropshire which held an event in the 19th century which inspired the modern Games. Mandeville is named after the hospital at which the Paralympic Games were founded. Though both sound like Tolkein characters, the names are quite good and are the only thing that makes the mascots distinctly British.
ewww and a video of their origin:
Regardless of this ugliness, I AM GOING TO LONDON IN 2012. Mark my words. lol