3.
Before firing it you should push a hole into the bottom so that you can add it onto a stem, maybe green wire. A little drop of E6000 will hold it in place. But since I haven't done this yet, it would have to be a pretty strong wire, I think, otherwise the weight of the rose will bend it over.
Tooth picks? Maybe a skewer? Something a little stronger than wire, but it would be added after firing.
You could also glue it to a picture frame or onto a little jewelry box without a stem.
Anyway, something fun to do with little scraps.