I still have an old shirt I got from the Star Tours store, with Vader pointing towards you that says:

I WANT YOU

FOR THE IMPERIAL FORCES

travel to exotic, distant galaxies, meet a wretched hive of scum and villainy . . . and disintegrate them

It doesn't come out that much now because it's about 14 years old and a bit small on me, but I still wear it sometimes. One of my friends had it first, and I had to get one too when I saw it. ;)

I believe it is based on anti-Vietnam army recruiting parodies about joining up to see distant lands and kill the inhabitants.