This winged origami missile with front-load tank delivers a wet payload.

1. Make the body.

a. Cut the paper to make a sheet with a length/width ratio of about 2:1.

b. At one end, fold each corner down to the opposite edge, then unfold, to make a square X crease. Turn over and fold the top edge down to bisect the X. Turn over again, push the edges in, and flatten the paper so there’s a point at the top.

c. Turn over, and fold the triangle down along its bottom edge. Fold each entire top corner down along the centerline and unfold just the back corners. Leave the front corners folded down.

d. Invert the crease you just made on the back corners, so they lie underneath and inside, making the top pointy again.

2. Fold the cargo bay.

a. Fold the side of each flap in front to touch the centerline.

b. Fold the bottom point of each flap up to touch the same point.

c. The tricky part: Fold the bottom points up again diagonally, and tuck them inside the pockets you made in the previous step (see 2d).

d. Fold each side corner of the diamond back to touch the centerline behind. Fold the top and bottom corners in front to touch the centerline. Unfold all four folds.

e. Crease the wings to line up with the edges of the cargo section.

f. Blow into the nose of your plane while gently pulling up to inflate the cargo section into a cube.

3. Bombs away!

a. Fill the cargo section with water, pouring carefully into the hole in front.

b. (Optional) Wait until no one is looking.

c. Chuck the bomb at your target or victim of choice.