Long exposures are an advanced technique that take practice and skill to perfect. This is a great weekend project that, if done safely, can really be a lot of fun. This technique is nothing new but learning long exposures will help your photography greatly. If you want to wow your non-photog friends and family these images are sure to impress.
Check out the tutorial by GoPro below and be sure to share you images on MY FORUM HERE.
I would not recommend this for kids. It has the potential to be very dangerous. Injury and fire hazard are both very possible. Please be careful if you decide to try this.