It's not really a "zombie Giant" but he is the Sylvanian Cow Thief so I think it fits, I created an old Von Drak banner that he uses as a loincloth, and a nice skelly for some basework, hope you enjoy!
Just for me to know, are there any rules for zombie giants to play with? Or is it only possible to use them for "counts as"? And what do you folks use him for? It'd be great to have one of these in the army, not alone for the game, but rather for the look
In version 7, there was a possibility for every army, to hire a mercenary giant. We kept this rule, basically just because we love giants. I just added the "undead" template (immune to psychology etc).