Hi, I'm incredibly stupid.

[Sundance]

Oh and another thing, the sprites on the item page are all 32x32, and are valid for use. There was a stage in the infancy of the wiki when the pics of the items were lossy (i.e: The color wasn't the true color, or it was kinda blurry) but that's no longer the case.
For animated sprites, download the gif and separate the frames!