If you are looking for some fun photography you can do with your kids in your own backyard here's a suggestion. I picked up some cheap fireworks and sparklers at Wal-Mart for my son and I to play with and it turned out to be a lot of fun to Photograph. Here's a few samples below. All shots were taken in Bulb mode with shutter release cable on my D5200 but I think any camera with some manual controls could be just as fun.