Every time I see a Buddha with a big laughing grin, it reminds me of a chubby baby ;) The rattle is made to look like one of his floating offering boats/bowls. Everything is green and slightly shiny so he'd look more like a he's an animated jade statue.
I think it works best on the Sand color shirt. I didn't want to put it on green because that might have been too much for some people. There is no special meaning behind the image, it's just supposed to be silly. =P
About my design
I hope you like it. :)