Firework Star is an item used to create fireworks with various effects. Players craft it by combining gunpowder with dyes and optional modifiers like glowstone dust or diamond, which add twinkle and trail effects respectively. When combined with a firework rocket, the star determines the color, shape, and effects of the fireworks' explosion, allowing for customization of displays during in-world celebrations or for signaling purposes.
The numerical item ID for Firework Star is 402
Numerical item IDs will only work in Minecraft versions below 1.13.
The item ID for Firework Star is minecraft:firework_star
This is the spawn command to give yourself Firework Star in Minecraft which includes the Minecraft /give command. If you are using the Essentials plugin you will need to use /minecraft:give instead of /give