Use it behind your regular gardens, as borders or in tiny nooks, or even on decks and patios. Try filling one end (making sure to leave a hole for drainage) and then binding a few together with rope or tie downs intended to keep things on the top of your car. It's the garden you can dismantle and take with you or a raised bed that doesn't require a truck to haul home.
These clay or terra cotta sewer pipes are still used (though not as frequently) around the country. Check with local hardware stores and plumbing retailers to find a distributor near you. Likewise, you can watch Craigslist and freecycle for folks who are doing a bit of demo!
Do you like the idea? Let us know in the comments below!