I managed to save just a few of them and put them in a container, where they are doing a decent imitation of ornamental grass.

Since the picture was taken, it has gotten bigger and now the first stalks are starting to make seed heads!
I know if I get any rice at all, it will be a small handful; it is just fun, because I've never seen rice plants before.
They are growing in a regular pot, in my potting soil, just with a saucer under it, that I do let water sit in, to keep it moist.