How to make a fairy jar-
Take a glow stick and cut it, pour out as much as you can into a jar. Then, put in as many silver diamonds (sparkles) as you desire. After this, all you have to do it close the lid, and shake the jar.
This is a great activity to do, it is something your children will find cool.
Also, for teens it would be something cool to use at a outdoor party (if it's at night!)