Learn how to make a homemade kite with this video. To do this you will need a regular plastic bag, some plastic straws, string and scissors. Begin by using the scissors to cut the bag in half, around the edges. Once you have this, make a rhombus shape out of it. You will need five straws and tape. Use one straw for the top and two straws on each side. Make sure that these two sides are the same side. Add clear or regular tape to stick the straws to the plastic bag. Lastly, tie the string at the bottom, the part without a straw, and the corners of the rhombus. Tie the string together and leave a long line dangling. You are now ready to test your homemade kite.