I love this idea for putting posts up, for lamps, that can also be fence or divider connectors. I like hiding a sturdier metal post inside a fabricated wood post, then attaching the remainder of the fencing to it. Great for high wind areas.
Backyard Chalkboard - paint and mount an outdoor chalkboard on a boundary fence for a great activity for children. Less mess + the rain washes it away! Add some simple wooden shapes in a bucket so kids can trace around them & create masterpieces.