Howzit
Firstly congrats on that hole in one back in January.
As to your question, someone, in this case a WGT friend of yours, decided to post it on your wall as a way of congratulating you on your achievement.
A quick search of images.google.com revealed it to be originally a volleyball trophy which has been photoshopped and personalised for you.
Here's the link
Hope that helps?
Cheers,
Peter