Densetsu no Starfy origami
From Starfy Wiki
Densetsu no Starfy origami (Japanese: 伝説のスタフィー おりがみ) is a pack of 20 origami paper based on Densetsu no Starfy, produced by Showa Note. The origami are 150×150mm. The pack was sold on November 20, 2002 for 200 yen (no 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.