God, I’ve blocked most of them out.
How about the incredable morphing plane in Iron Eagle? It’s an F-16! No, wait, it’s an F-15!, no, wait…
Or the scene when the “Migs” are shown taking off from the runway…with Israeli markings! I’m talkng the freakin’ Star of David here!
There was a movie with Bruce Willis and Sarah Jessica Parker–some kind of cop movie. Anywho, during the obligatory car chase scene, you see the front left hubcap come flying off. It grows back in the next scene. I remember this because my friends and I almost got thrown out of the theater for laughing so hard.
**Wing Commander.**Wooooo! The cool vector graphic displays on the ship’s bridge! The way that the crew had to manualy load the space torpedoes, like in a WW2 sub. The way the aliens looked like WWF wrestlers wearing cat masks…
Predator. That hand-held Gatling gun Jesse “Look, I’m a senator now” Ventura held. My friends and I figured he’d have to have a Red Rider wagon latched on to his belt to hold the car batteries and ammo he’d need to fire that thing, never mind the recoil.
Another one for Predator:When the big, bald black commando (“You ghostin’ me, man”) crawls under the sticks, and gets shot in the chest with the Predator’s shoulder gun: My buddies and I were watching the movie when it first came out on video at my house. My mom (who’s a nurse) walked in right at that scene, and there was a moment of silence as we all waited to hear her complain about the graphic violence.
All she said was “Why are his guts in his chest? His lungs go there.”
Never underestimate your mom. 
One time, during me and my buds’ Bad Movie Night, we rented the blackplotation Savage (“On the streets, or between the sheets, he’s Savage!” ). The “best” scene was when Savage used his machette to kill a bad guy in the jungle, by chopping him from behind in the backpack. Oh yeah, it’s time for Bad Movie Night again…
You say “cheesy” like that’s a BAD thing.