Some more experimenting!
I couldn't resist these little balls of yarn, Lion Brand Bonbons (eight per package).
Fortunately, I had the tiniest hook imaginable that I'd inherited from my mother: a Morrall's Aero. On the back it says “1 Made in England 14”. I've looked up some charts, but can't really figure out what that means.
First, I tried some of the little flowers I'd tried before. Quite a difference in size!
And, since it's March, I tried some little shamrocks – the easiest pattern ever and each one took only seven minutes.