Minecraft 8-bit Mario

This weekend I've been working on my minecraft texture pack with Mario 8-bit theme. I'm about 45% done.
I'm having a problem with the slab, lapis lazuli and mossy cobblestone textures. If anyone got an idea feel free to comment :)
When I'm done I will probably post this at the minecraft forums.
But if you want to try it out now, post your mail address in the comment section.