Do you have a Tractor Supply store near you??
I found some "Rabbit Fencing, that was quite reasonable at my local store.. *I used it for other projects but you could put up a sectioned area around some containers to do your gardening in..*
Here's a picture of some Swiss Chard I did, in just a regular like
flower box for $5.oo from either Wal~mart or Family Dollar Store..
*had to drill holes in it, for drainage*
Here's a picture of the Rabbit Fencing, and a project I used it for, *Sweet peas*
But it'll give you a couple of ideas for fencing,
buckets, containers.. etc..