Powerstroke Artillery Shells.  12 piece box with one launcher. 
 
Effects include:
Red Palm
Yellow Palm
Gold Willow with Silver Glitter
Lemon Stars with Purple Palm Pistil
Green Palm
Silver Glitter with Red Palm Pistil
Lemon Peony
Red and Green Peony
Green Stars
Gold Brocade
Crackling Stars
Crackling Flower