Just found some old code of mine and pushed it to squeaksource.

In a 4.1 Squeak or recent trunk image do

(Installer repository: 'http://www.squeaksource.com/Fireworks') install: 'Fireworks'.
(Smalltalk at: #FireworksAnimation) start.

In a 1.1.1 Pharo image do

((Gofer new squeaksource: 'Fireworks') package: 'Fireworks') load.
(Smalltalk at: #FireworksAnimation) start.

:D

All the best for 2011,
 Alex

PS: ALT-. or CMD-. will help ;)