Here’s an old idea that seems to have been completely forgotten about until recently: There are several foods which you can re-grow from saved pieces and will create a whole new plant! Isn’t nature amazing?
This idea seems to be undergoing an “internet renaissance” with the resurgence of interest in homesteading, survival skills and similar pursuits. Together with seed saving techniques, you can save a lot of money on groceries this way.
We discovered a great list of 16 plants that can be re-grown. Note that each of these veggies has a specific technique that goes with re-planting it – so you will need not just the list but to read the instructions – which are provided.
Ok, here is the link (archive version) for the full list and tutorials on how to grow the veggies: