|Photo from Positively Splendid|
These would be a fun decoration for the 4th of July, but they would be great at Christmas time too, or really for any festive occasion. They start with cute paper bags available at Amazon -- you will see the link in Amy's post. The bags come in 13 colors and several patterns, including stripes, dots, chevrons, and more. For less than $6, you get 100 bags! (You will need 9 paper bags for each star.)
Amy's tutorial looks very clear and includes a video as to how these stars come together.
The stars look festive on a burlap table runner, as here, but I think they would really shine when strung together as a garland or banner, maybe even alternating red and blue (or red and green for Christmas). I also did a little sleuthing on Amazon and found treat bags available in gold/white and silver/white chevron patterns. The metallic colors are more pricey -- $9.50 for 48 sacks -- but they might be really cute mixed in with red and blue or red and green.
Have fun with Amy's sweet idea and easy tutorial!