8cm x 8cm (50 or more units) White side up Fold in half and make a pinch Fold the bottom up to the pinch mark and make another pinch Fold the top down to the pinch mark you just made and unfold Fold...
20cm x 20cm Fold along the diagonal and unfold Fold in half and unfold Fold in half and unfold Fold the edge to the crease and unfold Repeat on the other side Fold the top corner and unfold Fold both...
Fold and unfold along the diagonals Fold and unfold each corner to the center Turn over Fold in half and unfold Fold the top edge to the center and unfold Fold the bottom edge to the center and unfold...