Well I made these out of the default 1.9.2 ones.
The logo is perfectly in the centre so it is easy to use for a reference when building.
Some maps they look pretty crappy on but most they look ok. A few lines are noticable on the blocks due to my bad texturing (I might fix them later).
Screeny:
Download:
http://nesianstyles.fw.nu/sf_blocks.7z