Just saw this video on youtube.com. It's a worm tower in your garden that furtilizes your garden as you raise worms.
Take a pvc pipe about 8" to 10" round and 4 ' long. Drill holes around the bottm 1 1/2 feet of the pipe (the size of your little finger). Dig a hole around 2 feet deep in your garden and place the pipe upright (Holy end in the ground). Put a good amount of aged cow/horse manure in the pipe and top it off with hay. Pour water town the tower to moisten the mulch/hay and worms.
Buy some wiggle composting worms and place them in the tower. Cover top with a netting and flower pot to keep out the flies.
The worms will eat the compost during the night time and go out through the holes and poop in the garden during the day. I thought that was a good idea and a wonderful way to water and feed my fruit trees.
The towers can be painted to add to the alure of the garden.