This one minute water bomb starts life as a square piece of paper. Fold it in half, then unfold. Turn the paper onto its other side, fold in half again, then unfold. Now turn the paper over and fold corner to corner, in a diagonal. Then unfold. Turn the paper around, and again fold the other corners to each other, in a diagonal. Hold the triangular piece of paper at the bottom, and squeeze inwards gently. The top corners should move out and the side ones should move in. Time to neaten up into a diamond shape now. Fold in the two flaps on one side, turn over and repeat on the second side. Now fold the new corners into the middle. Look for the little pockets that appear when you do this. You'll need these in a moment! Find the two bottom corners and fold them so that the upper edges pass over the two pockets. Then tuck them inside the pockets. Do this on both sides. Finally, all you have to do is inflate your water bomb by blowing into the small hole at the bottom! Fill with water, and have fun. You can add poster paint to bring a bit of colour to any impact! One word of warning: don't throw your water bomb at people or animals and also don't throw them indoors: they make lots of mess. You have been warned...!