Torres mentioned Velcro was invented by aliens. In star trek enterprise S2E2 Carbon Creek a Vulcan stranded on earth in the 1950s sells Velcro to a inventor for money for a local kid to go to college.
A character mentions that he dresses up as an alien and "buzzes" people. This is very similar to what it is said that Teasers do in The HitchHikers Guide To the Galaxy - "Teasers are usually rich kids with nothing to do. They cruise around looking for planets that haven't made interstellar contact yet and buzz them, meaning that they find some isolated spot with very few people around, then land right by some poor unsuspecting soul whom no one's going to believe and then strut up and down in front of him wearing silly antennas on their head and making beep beep noises."