Have you noticed how it's the simple things that endure the test of time? I was thinking --- I don't know why -- about how the simplest toys have been the most popular. Lincoln logs. Catch-the-cup-on-the-stick. Slinky. Silly Putty (I loved how you could press it on the Sunday comics, which were in colour, and peel it off and see the comic on the Putty). Pound the peg through the board, turn it over, and pound it again the other direction. Remember clackers? The idea was you had two glass balls suspended from a small ring, and you held the ring and moved your hand up and down and the two balls would bang together. There were tricks you could do with them. (Think about that. Glass balls. Banging together with a loud whacking sound. It's not hard to see why they eventually pulled the little time bombs off the market, but in the meantime they were fun.) Tiddlywinks. Pick-Up Stix. Toss-Across (basically Tic-Tac-Toe played with tossed bean bags). Twister. Marbles. Jacks. Jump Rope. And how hard was it to invent the Pet Rock?
So what's the next simple, easy-to-manufacture thing, and how can I make some money on it?