We know that Iwako has produced some obscure erasers. The Kamameshi food eraser is one example. We do think that the Musk Ox eraser found in the 1 to 40 section at sausalitoferry.com is among the oddest of the erasers. It is yellow in color. Did they not have brown eraser material when they made these?
We will have a weirder eraser coming in the next few weeks. Stay tuned to this station for updates.