<a href="https://jellheads.com/world/items?name=Firework Sticker" class="display-item">Firework Sticker</a>

Firework Sticker

Category: User Badges

│User Badge

Description:
A Sticker with Fireworks on it.
There seem to be different Versions of it.
But this one is the most common.

How to get:
You can get this Badge on new Years.