I think I'd just stick them in the soil. I honestly am not sure how easily they'll root for you, though. You'll just have to try and see how well it does. You might just have to wait for the part that remained attached to the roots to grow more leaves. In my experience, they grow pretty fast.
"Isn't it enough to see that a garden is beautiful without having to believe that there are fairies at the bottom of it too?" - Douglas Adams