Some days there is no site more fascinating. What've we got today...

Jazz Jackrabbit video game retro white t shirt
A JJ2 t-shirt with the standard Jazz and Spaz standing picture, on white. I'm not totally sure if this is official or not? It's definitely the picture used for the real shirt, but I would have expected a logo or something. Still, pretty awesome! Buy it!

Jazz Jackrabbit Collection
We've been pirated! As far as I can tell, this is an illicit compilation containing the JJ1 demo, the JJ2 demo, TSF (possibly the demo? doesn't say), and the JJ3 demo. How utterly odd.

Jazz Jackrabbit The Galactic Hero
Yet another release of JJ1 that we didn't know about. This one uses the beta Letni screenshot I found in this thread as a cover, and uses a final screenshot of Diamondus on the back with a completely twisted palette. Pretty bizarre, Radioshack! Probably just the first episode.