I just came across this knotties bio who has a great DIY idea on how to light your paper lanterns for cheap!! I am passing along this duty to my fabulous FI who is a mechanical engineer and should hopefully be able to tackle this project!! But I wanted to share this with everyone, because I was REALLY not looking forward to paying for the expensive paper lantern lights!!
http://sites.google.com/site/knottiebiobnlchic03/diy