Replace your plain boring address numbers with this diy address plaque with glow in the dark numbers. I really like this plaque, not sure if I would put the key in there but that is a personal choice and you can if you are ok with it. I like that the numbers glow at night when finding a house number can be next to impossible. These would make some really nice gifts for a house warming or even for Christmas. Matt2 Silver shares the instructions on Instructables.