I used to believe that toy cars were called "Hot Wheels" because the tires were actually hot to the touch. I was disappointed when I got a Hot Wheels in a fast food kid's meal and the tires were actually room-temperature.
A childhood belief about toys

others believed things like this
- I used to believe that there were lots of hamsters in the wheels of the car, and that's what made it go.— Jade
- I used to believe that training wheels were the different colored beads on the spokes.— Samantha
- I used to believe that when people talked about 4x4 trucks, I thought it meant all the wheels turned.
— tracy - i used to believe that my brain worked like the inside of a clock. How the wheels cranked and turned.— Becky
- I use to beleive that Motorways had special tarmac on the road that made the wheels go faster— Nada
- Mum used to believe there were men, women and nuns and nuns used to have wheels under their habits!— Chris - Sheffield