I do the bubbles and the kids chase them. I get the ones that look like swords/light sabers - got mine at Walmart for a couple dollars each. It has a nice long wand in the handle that you can just wave and it makes bubbles so no need to blow. Just fill the swords back up to be ready for the next day.

When letting the kids blow bubbles I fill a cup and hold it myself. They each have their wand, they come dip it in my cup and then blow.