Tigerella tomatoes (check the link to see what Diggers Club says about them).
I bought eight healthy seedlings at a school fete in October, and planted them in big pots on Melbourne Cup Day (that's when Melbournite have to plant tomatoes, you know).
They survived us going away, and being watered by our lovely neighbour. They've been watered by the kids a few times (trying to get them into the habit - it's not a hard chore). And now each day I'm picking a few more of these gorgeous stripy tomatoes. Total cost of project, now that I have tall the pots and trellisses - about $4.
3 hours ago