Balloon Flight floats on! These are the mini shikishi (ミニ色紙) from the GRANUP × Samurai Pizza Cats collaboration — small, square art boards about 120×135 mm, printed with metallic-gold edges and classic Japanese design charm.

Released as blind packs (¥550 each / ¥4,400 for a box of 8, containing all designs), the lineup includes: Yattaro (x2), Sukashii (x2), Pururun (x2), a team collage, and a stylish four-panel layout.

This set did not include any “hidden” designs.

What is “Shikishi”?

Shikishi (色紙) are traditional Japanese art boards made from thick, high-quality paper mounted on backing with gold foil edges.

Originally used for calligraphy, poetry, and autographs, they’ve become a popular medium for anime prints, illustrations, and seiyuu (voice actor) signatures.

• Mini Shikishi (ミニ色紙) are smaller, collectible versions often sold in blind packs, especially for anime or game collaborations.

• They feel sturdier than postcards but lighter than canvases, making them easy to display on easels, in frames, or alongside acrylic stands.

• Western collectors might compare them to “art cards,” but they have a uniquely elegant, tactile quality rooted in Japanese art tradition.