Keyboard Keycap Gallery
in the legend of far east, there's this monkey king, who is unstoppable. He is stopped by Gautama Buddha. 西游记 西游记 (Journey To The West)
Where to Buy Keycaps?
The artistic 3D ones are typically custom crafted, not mass produced.
They can be expensive, $30 or more.
You can also find them on ebay, massdrop, or via keycap trade from reddit or geekhack.