I ran across this and thought these looked like a cool camping project. It's as simple as painting dogs of glow paint inside a clean, clear jar, then letting it "charge" under a light. Personally I'd cap them to keep the inside clean and protect the paint. I've seen some glow paints that say they last for hours. Depending on how long, you could maybe even use them as a sort of night light. If anyone tries these, let us know how they came out.