Build a Star: for the Megalomaniac That's in All of Us

"Virtual Experiment / Build Your Own Star"
Schlumberger Limited

"Use our star simulator to build your own star! You determine the fate of your star by setting initial characteristics. Then watch as its life story unfolds before your eyes. Here’s your guide to the Build Your Own Star controls and displays. But first, a little background…

"Star Primer

"All stars have a beginning and an end. But their life cycles vary. Some are short lived, while others remain bright for a long time. Some end up as white dwarfs, while other become neutron stars or black holes."

I thought this was fun, although your experience may vary. There's a pretty good primer on how stars work, and are formed.