I can't take credit for coming up with this idea but I also couldn't figure out where I found the idea originally (if you search on Pinterest tons come up!)..anyways, STEM (Science, Technology, Engineering, and Math) is big right now and here is a fun project for you to do with your students (especially at the end of the year when you may (or may not be) trying to kill some time.
1) Read "The True Story of the 3 Little Pigs" (in my opinion you could also use the original version of the 3 Little Pigs... or do both and discuss the differences to the 2 sides of the story).
2) Give students the task of building a new house that the wolf cannot blow away with a variety of supplies (Popsicle sticks, pipe cleaners, tooth picks, newspaper, tape, etc).
3) Use a blow dryer to see whose houses can withstand the wolf