Swing sets- They were sold in toy stores/toy areas and they seemed to be everyone's favorite outside play-thing when I was growing up. So, I'm going to classify them as toys. The imagination involved in playtime was what still amazes me to this day. My neighbor's set had a really good face to face glider with the high back seats and a nice tall slide that went almost up to the top support bar. Mine had a teeter-totter and a backless glider with singular seats. We both had several swings and trapeze bars. The possibilities for play time were endless! While my kids had a more modern wooden one, they got several years of good play time out of theirs as well.
Atari/Nintendo- Heck, we still love our video games. Still, I remember that first Atari. Space Invaders and Asteroids were early favorites, but Skiing, Pitfall, ET, Air Sea Battle, Combat, Super Breakout, Kool-Aid Man, Missile Command, Star Raiders and even Blackjack got lots of playing time. Nintendo's NES brought us into the next round of games. Super Mario and Zelda meant hours of fun during the winter months.
Play-Doh- I was particularly fond of the kits that came with extruders. To this day, the Fuzzy Pumper Barber shop was my favorite. Even on its own, it was fun to sit down and just make stuff.
Honorable mentions to: Smurfs, Cabbage Patch dolls, Lite-Brite, Etch-A-Sketch/Skedoodle, Merlin, Simon, Little People, Tree Tots, a new box of 64 Crayola crayons, Strawberry Shortcake, Snoopy & Friends, Sesame Street toys, Ollie and Olivia octopus, Creepy Crawlers, Sit N Spin, Lemon Skip It, big wheels, Mousetrap, Parcheesi, Trouble, Life, Candyland, Chutes and Ladders, Colorforms, Make It and Bake It kits, Shrinky Dinks, silly putty, Fashion Plates, magnetic car games, and dress up chests. I should also mention Barbie and toy kitchens. I never liked Barbies, but DD17 sure did and it was hours of fun for her. Toy kitchens also weren't popular in my circles as a kid, but my local friends made sure I got one for my girls and guided me towards a proper kitchen
They weren't wrong. It was a big hit!