Iwako Japan also makes Japanese erasers for other companies. Sanrio, which is the company that makes and licenses Hello Kitty has often contracted with Iwako to make Hello Kitty themed erasers. We currently are offering one such combination of Iwako and Sanrio here.
Pictured are Keroppi Japanese Eraser Pencil Toppers that Iwako made. We do not know when they were available, but we do know that they were only for sale within Japan.
We have a section at sausalitoferry.com, Iwako Pre-production Samples and Vintage Erasers that all these rare Japanese erasers can be found. We will be adding more in the next few days. Unfortunately, none of the Japanese erasers in this section are for sale.