Butterfly Ball Dual

Here is a simple modular origami model that looks good and has a fun property. When you toss in the air and hit it, it explodes into a shower of pieces that flutter to the floor.

Steps

1. Crease six squares of paper with the pattern shown. Dashed lines are valley folds and dot-dashed lines are mountain folds.
   
2. Fold along the creases then open up the paper again.
   
3. Slide the pieces together alternately above and below the pieces next to it.
   
4. Toss the model in the air and hit it to see a shower of pieces.
   

References

• (Hull 2006)