Finding Trellis Ideas

I have started looking for trellis ideas for hiding the gappy fence the neighbors put up a couple of months ago. It's got lots of wide gaps in it, so I'm calling it gappy, and frankly I don't like it one bit.

I don't have the money to just go buy some trellis material or a pre-built trellis, but I do know how to recycle or re-purpose free wood scraps found on a weekly basis on the local craiglist.org free section postings. So these ideas are the ones I like so far, keeping in mind I'll have to be able to build it myself, and it's got to be inexpensive, yet effective! Remember, too, the idea is for the plant to eventually hide the trellis, so shape and practicality are more important than looks to me at this point.