Not sure what A-List artists and pro-wrestling has to do with bears. Here’s what the WWF website says:

For over three decades, our army of sturdy panda collecting boxes stood outside shops and offices around the UK, but were all recalled in 2007.

Rather than recycling the lot, we got together with specialist curators Artwise and challenged top British artists to reincarnate them as innovative and memorable artworks, to communicate the importance of our work in a truly inspirational way.