The "OR YOU WILL DIE" face of Ganon from that awful CD-i game, often featured in Youtube Poops (search Youtube for "youtube poop ganon" if you're not familar with this; warning, may be nsfw). Falls squarely in the "so bad that it's hilarious" category.
It was vectored in Inkscape from a low-quality cap, modifed and cropped appropriately for Blockland, and exported from there to PNGs. I think it looks reasonable in game, but if anyone else would like to take a shot at it, I'll provide the .svg files on request. Here's a larger (512x512) PNG, which is cropped and modfied as I did the ones in the .zip for Blockland, just because I can:
And the link to the "Face_ganonQUALITY.zip" thingy:
http://www.mediafire.com/download.php?azzlffs3m2vEnjoy.