Vomiting a caustic substance: How about Witches of Eastwick.....well, I guess cherry pits aren't exactly toxic.
Law enforcement ineptitude: The Bone Collector - one dude in a bed seems to figure out everything that a team of people couldn't.
Non-hand replacements for hands: I'm tempted to go with the final episode of the original series of Futurama, where Fry gets a new set of robot hands because they actually had a song about it, but since those were also "hands" more or less, I'll go with hooks sported by the T-1000 in T2 used to crawl up the back of the car driven by Arnie.
Movies that were all the rage in college but that you never want to see again.: Burton's Batman. Had enough Price for a lifetime, thanks.