I finished these all up, so I'll just post them all at once =) Original post explaining the reason for these stones is here.
This is stone 4. The pattern is here- it's called the pinwheel doily. In case it's not obvious, I just started at the beginning and continued until it was large enough to fit the stone-I couldn't fit an entire doily on there, could I?
Stone 5 is the floral star doily, a free pattern download from Ravelry (you must be a member to access this).
And stone 6 is the sunburst doily, with some modifications-I tossed the pattern after the first couple of rows, and just did some treble crochet with sc between.
I hope the folks receiving them enjoy them, and I can't wait to see what I get in return. I'll be sure to post it for everyone's enjoyment and inspiration.