You can visit this website to view the last three years of Fireworks Challenge Quilts made for the Art Show of the Pyrotechnics Guild International Conventions.
go to: www.PGI.org
Under Conventions, click on Pictures, you can then choose from the last three years of quilts made for the challenge.
There are many other photos of grand fireworks you can see on this site also, enjoy yourself - maybe one of these photos will enspire you to make a fireworks quilt!
Only PGI members can enter the quilt challenge tho.