Densetsu no Starfy pencilboard
From Starfy Wiki
The Densetsu no Starfy Pencilboard (Japanese: 伝説のスタフィー 下敷き) is a transparent type shitajiki with artwork of Starfy performing his Spin Jump ability and Densetsu no Starfy characters on the surface. It was sold on November 20, 2002 for 200 yen (excluding tax). It is now discontinued.
This was one of various official merchandise used to promote Densetsu no Starfy as listed on the official mini-site's Goods section.
