I made this a few years back, but with the set being re-released I thought I would post.
I bought and extra Carrie Kelley Robin so I could have 2 Streetlamps. I split the Lamps down the seams so I could lay the wires. I took the LED lights out of some keychain fob flashlights. Soldered all in place and reassembled and painted the Streetlamps.
I got a sheet of brick from Hobby Lobby and aged it a bit with different color dry-wash. Then I rubbed in powered charcoal (yes from the BBQ) to make it nice and dirty.
Assembled it all together and ran the wires in the back to a 9 volt battery.
Light up alley!!