Flag erasers
The object of Eraser Fight: Flag Battle is the bookshop flag eraser: a thick rubber block with a national flag on the face. Flags are cosmetics. They never change mass, friction, or how a flick flies.
Starting tin (free): Singapore, Malaysia, Indonesia, Thailand, the Philippines, Japan. The rest of the class set can be earned: Vietnam, Laos, Bangladesh, India, Myanmar, Timor-Leste, South Korea, China.
Starting tin
Singapore
Home-market flag eraser. Crescent and five stars on red over white.
Malaysia
Stripes, blue canton, crescent and star. Core of lawan pemadam sets.
Indonesia
Red over white. Same geometry as a classic penghapus bendera.
Thailand
Five bands, red-white-blue. A staple of the SEA tin.
Philippines
Blue, red, and a white triangle. Another recess regular.
Japan
White field, red disc. Drop mode is the Japanese school rule.
Rest of the class
Vietnam, Laos, Bangladesh, India, Myanmar, Timor-Leste, South Korea, and China unlock as extra faces. Same physics. Same pin test. A flag is a texture on two faces.