Step 1: What you will need.
You will need a exacto, knife Two rolls of duck tape and ruler.
Step 2: The base.
Your are going to cut 11, 17 inch pieces of each color. And stick them together in the oder you want. Once your done with the first one make another! Once you have to pieces you trim them.
Step 3: Putting it together.
Once you have both pieces you put them together and tape them together on both side's. Then fold it and then tape it like in the picture bellow.
Step 4: Putting together the bottom.
Now get five strips of tape 3 of one color 2 of the other, make them as long as the bag. put them together with tape on the bottom and top. As shown in the picture. Once done put on the bottom of the bag.
Step 5: Cover.
Now cut out five strip of each color, make them a inch smaller on each side then the bag. Pu them together with no sticky sides. Put it on the top of one side of the bag and tape it on. Now make a five inch strip of each color and put them together. Then tape it on to the cover. Now cut a strip two inch's down from the cover, then cut another on a inch down from that.
Step 6: The strap.
Now cut two pieces as long as you want, and put them together for the straps. Now tape the strap on each side of the bag, the more tape you use the less of a chance that it will come off if you caring something heavy.
Now your done!! You can put stickers on the bag if you want, have fun with it.