i have no clue so i came here to answer.com
15x15= 225
Take a rectangular piece of paper and fold it diagonally until you have a triangle that is two pieces of paper thick, Cut of the piece of paper that does not make up part of the triangle unfold it and you have a square.
with a piece of paper
crush a piece of paper and tape it.
To make a Chinese popper with paper, start by cutting a square piece of paper, ideally around 15x15 cm. Fold the square in half diagonally to form a triangle, then fold the two corners of the triangle to the top point, creating a smaller triangle. Next, fold the bottom point up to the top, then quickly pull the sides of the triangle apart to create a popping sound. Adjust the folds and ensure the paper is crisp for the best effect.
crush a piece of paper and tape it.
take a piece of paper and put it in a bottle and take a piece of string and light the string
On a piece of paper
Use a big piece of paper, or make one with cardboard and staples.
get a piece of paper and writ on it
Take a regular piece of A4 paper and glue it to a mirror.
You have to keep folding a piece of paper until it is in the shape of a taco.