Thanks to Fright-Rags I now know it has been 40 years to the date that the Alien franchise launched. I have to say that it is one of my all-time favorite series. I've pretty much loved every movie in the series (but admittedly some more than others).
Fright-Rags has a whole bunch of different Alien shirt designs (plus pins, masks, etc), to celebrate this milestone, but the low-key USCSS Nostromo shirt (pictured above) has to be my favorite. Coming in at a strong second is the design dedicated to Jonesy the cat with the stylized Alien Monster shirts coming in third (just in case you're shopping for my birthday). I should also note that they have the collector d.v.d. set which I recently made a project of re-watching and had a blast.
You'd do well to keep up with Fright-Rags, and while you're at it, check out our store for some really cool, way out there designs as well.