One of my gardens is on a lot owned by a neighbor. She gives me pots and things she thinks I might find useful. Last year after everything was completely planted, she gave me an old, over-the toilet metal shelf about like this. She seems really interested in my incorporating it into the garden, but she also like things to look attractive yet a bit quirky. The shelves aren't usable as is. They'd need some planks added. My first thought is to make a trellis, but it seems small for anything I might plant. Have any ideas for how to use it? I might be able to take it apart if that would be useful.

It's actually probably a bit more rickety than the one in the photo. The garden is a mix of ornamental and food plants, but intended to give cheer to passersby.