I'm at work so I can't post pics but I can describe them
Pac-Man - everybody knows Pac-Man was huge from T-Shirts, cartoons, breakfast cereal.
Superman II - it was plastic and looked like the type construction guys use, it had Superman front and center with the supporting characters on each side.
Return Of The Jedi - I didn't have the metal one with the better artwork instead I got a plastic one with R2-D2 and Wicket the Ewok.
Then after I think around the 4th grade it was rather uncool to even carry a lunchbox and I switched to brown baggies.