A rocket craft is obviously perfect for any party around the 4th of July in the US, but this is just too much fun to limit to such a short period of time or such a specific theme. The kids not only get to make these out of TP rolls, they get to pull the strings for the confetti explosion! Now how much fun is THAT!
These take a bit of finesse to make the trap door for the confetti, so for the young ones you might choose to make the rockets and string them up as a decoration until such time as you have the kids pull the strings. Older kids can entertain themselves with the making as well as the exploding.