Begin with the reverse side up, with the dollar oriented as shown in the illustration. Fold in half by matching the bottom left and the top right corners of the bill. lt is important that you use these same two corners each time for each of the six bills. Otherwise, you will not be able to assemble the project. Fold the left corner of the back layer over the front. Pull open the bft and right flaps. IO Fordthe other five bills so that you have a total of six folded units ready for assembly. Open one unit and orient it vertically. 11 Ptace another unit over the upper half of the first. Be sure that the proper ceases are aligned before you close the bottom layer of the first unit over the new unit. Fold the right edge of the front flap to match the left, folded edge. ,-C\ Fold the indicated right edge to match the left side of the model. Fold the left edge of the top layer to match the right edge of the model. Notice the layer marked with an "X" in the diagram. Cover this corner area with layer "A" by swapping them in place. Look at flgure 13 for the result. Layer "A" covers the corner area marked "X." Add new units, one at a time, in the same manner until all six bills are in place. Form a closed umbrella shape by joining the ends at the gap. Look ahead at figure 15. The model will be tall and conical. This is the closed thistle. look like this. Turn over. Open and vtew the front again. Gently pull out the indicated layers one at a time to make the thistle bloom. Thistle.
Begin with the reverse side up, upslde down. Fold in half, short edge to short edge. Unfold. 2 Fotd the teft and 5 Fotd the top right halves of the botup to the :il::'" remnant edges down, flush with the edge behind. Turn over. Fold up the bot- Turn over. tom edge. Use the rectangle at the back as a guide. Based upon a design by Ethan Plaut, 1998 Modified by Richard L. Alexander, 2006 A taller step pyramid from three squares, developed by Ethan Plaut, inspired this three-piece, modular construction. The resulting equilatera! triangles can be joined with others to make interesting tetrahedra, pyramids, and other more complex polygons. You will need three crisp dollar bills for this project. Fold up. Turn over.