glowworm jars

Source: bucikah.deviantart.com via on Pinterest

These look fun. Made with glow in the dark paint. I wonder how they got the different paint splatters on the inside of the jar? Do they just paint dots? Does anyone know?

I've seen pictures of jars done with the contents of glow sticks, but unfortunately the result is short-lived.

Edit:
Thanks to Jennifer I've now got a link to the instructions for making these. See here

 http://frompankawithlove.blogspot.co.uk/2012/01/glowing-jar-project-varazslat-lakasban.html

Can't wait to have a go!