Thaumatropes

A Thaumatrope is 'A cardboard disc held between two pieces of string. A birdcage drawing is on one side and a bird on the other. When the strings are twisted the disc spins and the bird appears to be in the cage.' - Richard Williams - The Animator's Survival Kit

I decided to try and make my own thaumatrope as a trial after reading about this in the 'Survival Kit', here is my result!: