Cascade I lived Cascade. It was pretty easy to set up and the 3 different notes from the 3 different trampolines was very satisfying to listen to. Completely hypnotic once it was going. Looked it up recently on eBay to see if I could get one. There were a few but all incomplete and not working. I miss being a child!!
Skull Crushers I was given a box of these one Christmas. Pretty sure they didn't make it through Boxing Day.
Digital Watches I remember my first digital watch from around 1980. It had a calculator and the alarm tune was 'Yellow Rose of Texas'. I also remember the face plate around the calculator buttons falling off repeatedly and poor battery life. Around the same time mirror aviator shades were the big thing.