This is my first instructable, so feel free to give me tips, ideas, or any sort of judgement you like, I wont be offended. Please exuse the blurry photos, as these were taken by an IPhone 5s.
Step 1: Carving the Tips
First, you will want to take the two popsicle sticks, and carve the ends to a point with a whittling tool, such as a buck knife.
Once that is done, it should look something like this, for best results, try to carve the same distance from the center of the popsicle stick on each end.
You will want to criss cross the popsicle sticks so that there are four right angles. Glue the top popsicle stick to the bottom one with wood glue, if you don't have wood glue, then use either Elmer's classroom glue, or use a hot glue gun.
After the glue has dried, you can color the star whatever colors you want with paint or marker. Do not use crayon for this, or water paint
Step 4: Throwing
When throwing your new ninja star, hold one end between your index and middle finger and swing your arm down and release ;) have fun!