Coaster (Origami Paper Folding) Leave a Comment / Origami Paper Folding 1 / By Sahil Take an origami sheet. Cut four equal pieces of a square paper. Take one of them. Fold along the dotted line. Fold the left corner over the right one. Fold 2 sheets so that the coloured side may be on the outside, and 2 more sheets with the coloured side on the inside. First, make 2 pairs by inserting the coloured pieces into the white pieces as shown above and then put these 2 halves together as shown in fig. 4. Join all the four parts as shown. Your coaster is ready.