
This Money Cross was created by Mark Robert Morden. It is a clever design: although the model looks like it needs two dollar bills to make the cross-bars, it actually uses only one dollar bill. You begin by folding the dollar bill into thirds.
Money Cross Instructions
|   Step 1: Start with a crisp dollar bill. Fold it into thirds horizontally. Unfold. 
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|   Step 2: Fold the bill in half (left to right). 
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|   Step 3: Fold up the bottom-left corner of the model so it becomes a small triangle. The top of the triangle should align with the lower crease made in step 1. 
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|   Step 4: Fold in the left side of the model. The folded section should be the same width as the small triangle made in step 3. 
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|  Turn the model over. | 
|   Step 5: Working with the top-layer of paper, fold the left side of the model towards the right. Use the flap made in step 4 as a guide to measure where to make the fold. | 
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 Step 6: Fold the top-left side of the dollar bill towards the right. Use the crease made in step 1 as a guide. | 
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|   Step 7: Fold the raw edge towards the left as shown (fold in half). 
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|   Step 8: Repeat on the right side: fold in the top-right section. 
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|  Make a squash fold to flatted the paper. | 
|   Step 9: Pinch both raw edges together and fold them towards the right. Fold over twice to lock the layers together. 
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|  This is after one fold. Next photo shows how it looks after 2 folds. 
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|   Step 10: There is a flap of paper near the middle of the model. Fold up this flap (fold in half). 
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|   Step 11: Lift this flap a little and release the trapped paper that is underneath. 
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|   Step 12: Position the released paper so it overlaps the layers under it. 
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|  Rotate half turn. 
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|   Step 13: Repeat steps 6 to 9 on this half of the Money Cross. First, fold in the top-left section of the model. Remember to make a squash fold to flatten the paper. 
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|   Step 14: Fold back the raw edge. 
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|   Step 15: Fold in the top-right section of the dollar bill. 
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|   Step 16: Pinch the two edges together, fold over twice to lock the layers together. 
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|   Step 17: The dollar bill Money Cross is almost done: fold over the central flap twice to lock everything in place. 
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|  This is how the Money Cross looks after one fold. 
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|  Appearance after two folds. 
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|   Step 18:  Turn over and rotate. 
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