Exploding sparks with a rounded five-pointed star at the center or fireworks.

Fireworks

Fireworks or exploding sparks with a circle at the center.

Fireworks Or Sparks

Two concentric five-pointed stars with curved edges.

Two plain shapes : a diamond and a pointy irregular star.

A busy and overworked manager or employee surrounded by charts, graphs, and notifications.

Two concentric star shapes with eight rounded corners.