A thaumatrope was a hugely popular toy in Victorian times, a kind of old-school stop motion trick, or an old-school show with only one channel. With the wonder of persistence of vision, a bird magically transported into a cage with just a twirl of a string.
Conkers. I remember playing this until all you had was a lump of white stuff on a string! I tried everything, baking them, soaking them in vinegar and all sorts to get them to last the longest! I'm sure health and safety has sadly now stopped this kind of great kids' fun in the playground!