The Champagne Boomer is a giant mortar-styled firework that will launch a champagne-colored starburst pattern into the sky.
Fireworks were available for a limited time through the Facepunch storefront but can now only be acquired through other players selling them on the Steam Marketplace.
Most players appreciate firework shows and understand that your base is unlikely to have much sulfur in stock by seeing your fireworks, making your base an undesirable raid target.
You can light your fireworks by individually striking each placed boomer by hitting it with a lit Torch, or you can set up an electrical firework Igniter that will set off all fireworks within a set radius.
Due to too many fireworks launching at once affecting lower-end systems, Facepunch implemented a limit on the number of fireworks launching at once. Servers now queue all active Firework launchers.