Add origami-style light covers to a string of miniature Christmas lights.

The origami “waterbomb” pattern makes an excellent Christmas decoration—just slip completed paper boxes over miniature Christmas lights on a string of lights.

1. Use a square of paper. If using origami paper, start with the white side uppermost. Mountain fold horizontally and vertically across the paper. Unfold each time.

   Step 1

2. Form a vertical valley diagonal (the other creases are mountains). Unfold.
   
   

   Step 2

3. Fold A down to D.
   
   

   Step 3

4. Hold as shown. If the mountainsand valleys have been placed correctly, the paper will form a 3D pyramid when the hands are swung toward each other…...

   Step 4

5. ……like this. Flatten A against B, and C against D.
   
   

   Step 5

6. Fold A and C up to E. Repeat behind with B and D. (Note: To increase the size of the hole through which air is blown to inflate the waterbomb, fold the corners short of E. A hole that is too small is difficult to blowthrough.)
   
   

   Step 6

7. Fold G and H to the center. Repeat behind.
   
   

   Step 7

8. Fold A and C into the center at G and H.
   
   

   Step 8

9. Valley fold the small triangle above A into the pocket made by separating the layers above G. Repeat with C on the right and twice more behind with B and D.
   
   

   Step 9

10. The waterbomb is now locked, front and back. Blow into the hole at the bottom to make it 3D. If the hole is too small, enlarge it.
    
    

    Step 10

11. The waterbomb is complete.
    
    

    Step 11