Well, I wish I had known that earlier. Before I read your post, I whipped up this:
ZOMBA1.png [ 2.27 KiB | Viewed 404 times ]
But I don't know what you could do for a skeleton, but I have an idea. Let me just go try something, and I'll try to update this post shortly.
Well, this would require some work, but what about this:
SKELETON.png [ 1.83 KiB | Viewed 57 times ]
I know, I know, it'd be difficult to complete, especially if you want to give it a sword or shield, and nearly impossible for me to make with a bow. If you like it, I could try to supply you with a sprite set for it, although there are no guarantees that I could get this finished.
By the way, what is this zombie you already have? I'm just curious, because I've looked for an unarmed zombie at times as well.
ONE LAST EDIT:
Sorry, but I decided I don't want to try to make the Skeleton sprites. I couldn't have done the death frames, anyway, so my offer was a bad one. Also, I lose inspiration very quickly.