This tutorial uses old sheets. You can use you old sheets from home or buy some at a thrift store. There are many possibilities for colors and design.
You will need.......
a cutting tool
home made pattern
something with a point to push out the point of the flag
seem binding (I used extra wide, double fold bias tape)
and a sewing machine
Once you sew on both sides then you will need to trim the bulk. The reason is to have your flag lay as flat as possible when you turn in right side out.