Wild, Wild Planet
It's AWESOME! Awesomely bad, of course! It's the most riffable movie that I've seen that hasn't already been riffed on a MST3K-related project. The outfits, the dialogue, the Rocky Jones-like spacecraft, the goofy plot. It has it all! We highly recommend it, so watch it you helium heads!
Make sure to watch the trailer here: http://www.youtube.com/watch?v=SB3SszYjEmA