Holly this what u do with all daves messed up bike rims and put in your garden. I love this idea! I could mount old bicycle wheels/tires/rims on the side of my old shed and let the vegetation climb! Fabulous up-cycle idea!
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.