I've been planning for this Sunday and we're covering the passage from Luke 12:6:
Are not five sparrows sold for two pennies? Yet not one of them is forgotten by God. 7Indeed, the very hairs of your head are all numbered. Don't be afraid; you are worth more than many sparrows.
I haven't seen sparrows for sale in the shops recently, so the way I'm going to bring this picture up to date is to talk about carnations which are fairly cheap, yet attractive, scented and (so I found out this evening) edible.