I made this at a "Generative Art with Processing" workshop, hold by Marius Watz, whoose generative art is aesthetically very influential and perfect. Therefore, the "hyper_be11z" are a little unusual.
There's snow falling down, and 2 beautiful x-mas bells, which have a nice movement, can be zoomed in and out by clicking the mousebuttons. I think the background image is originally from windows 98.
View source code of hyper_bells
screenshot