Many are interested in DIY beehives in a jar. Have the rows of organic honey jars at the farmers market made you think about starting your own backyard beehive? A common suburban backyard can be a perfect place for beehives.
Log Bird Feeder - 23 DIY Birdfeeders That Will Fill Your Garden With Birds (my note: I haven't looked at all of these, but at least one is a terrible idea. The window birdfeeder -- birds could fly into the glass and hurt themselves.