Cut a piece of paper about 4 inches by 3 inches. Make very small fringe cuts, leaving about 1/2 at the top uncut.
Starting at one end of the uncut section, carefully roll the paper up as tight as possible.
Now stick it into the end of the straw but you may need to snip off an inch or so at the end of your roll to make it work.
Then cut down a skewer to about the same size of the straw and insert it into the middle of the straw to add structure to the inside. Use a small piece of tape at the end to secure it inside.
Bend the paper a little bit to give the sparklers a little Poofing up. Enjoy!