Blue and Red Anniversary Fireworks

Blue and Red Anniversary Fireworks is a trinket received from opening a Two Year Anniversary Present. Upon activation, blue and red fireworks are launched into the air with a whistling sound.

Source
The trinket was only given to Player Characters active during DC Universe Online's 2nd Anniversary.

Trivia

 * The firework launched is that of a large green number "2" to celebrate DC Universe Online's 2nd Anniversary.