An absolute GEM of is Dead Alive from Peter Jackson. Just incredibly bonkers and the goriest movie ever made (lawnmowers ftw). Highly recommend it for 80s campy fun.
The 90's version of Island of Doctor Moreau is absolutely fucking terrible, and absolutely fucking fantastic. The story behind its production is also really wild and there's a documentary about it called Lost Soul: The Doomed Journey of Richard Stanley's Island of Dr. Moreau that I can recommend.
Kurt Russell's Soldier is also one of my favorite bad movies
Hudson Hawk. Goofy heist movie with Bruce Willis who plays a cat burglar who is hired by a rich dude to steal several pieces of art which contain the secret to transmuting lead into gold.
Probably Sucker Punch. Has nothing to do with a crush I may or may not have on Jena Malone, and exclusively to do with the straight-played, over-the-top ridiculousness of the entire film.