I guess the next step is to figure out what the person has, and what he is she wants or needs. I would think a manual SLR with a variety of lenses and filters would be the thing. There are probably some good buys on used film cameras, although I don't know how much you could get for $30 that works well.
I suppose as people covet more megapixels there are probably some good deals on used 3MP cameras, some of which can be quite well made. You could try looking at http://www.dpreview.com to get an idea of the features and reviews of various cameras you may be considering. Some of the reviews are several years old, which is probably what you want when you consider used equipment. Of course that won't tell you how well a particular used camera has held up through the years.
A few things you want to be sure to get (for beginning artistic photography)
If this is a digital camera, 30 bucks really isn't going to get you much...but these are the things you should look for when you are starting out with photography regardless of if it's digital or film:
*An SLR camera with interchangable lenses OR *AT LEAST* a non-slr with a minimal zoom ability. In the 'cheap digital' price range I'd suggest something like the Minolta Dimage Z2 (4mp). I still use mine, this is the camera that I started learning on and I took some of my favorite pictures with it. Your camera also should have the ability to change your fstops and shutter speeds in some type of manual mode.
*A good photography book. The one that I'd recommend is Photography (8th Edition) by Barbara London and John Upton. This book is expensive as books go ($60-$80 new, less than that used) but it's the best one out there. This was my 1st sem Photography 101 textbook and it teaches you all the basics, I even taught myself to develop film from it.
*Get a tripod. Trust me. And not one of those 20 dollar POS things from walmart, I bought one of those the first time and it snapped in half within the first week.
If you are absolutely poor (sorry) then $30.00 camera is what you're going to get.
But, if you are getting into "Artistic" side, that means you need some kind of manual control (aperture, shutter speed, flash compensation...).
So, go from there.
If you don't have any control over your pictures.. that's what we call "Snap Shots".
Yes, you can take artistic snap shots, but...