You might like Left Right Folded Paper Clip I Richard Smith 1975 Folded Paper Clip II Richard Smith 1975 1 Richard Smith 1973 2 Richard Smith 1973 1 Richard Smith 1973 2 Richard Smith 1973 3 Richard Smith 1973 4 Richard Smith 1973 Four Knots Richard Smith 1976 Triangles Richard Smith 1978 Triangles Richard Smith 1978 Triangles Richard Smith 1978