Here's an update on my White Cat Crazy Quilt project:
The yellow flowers on the vine to the left are little gathered Picot Edge Satin Ribbon flowers. Picot edge ribbons are approx. 1/4 of an inch wide and available at any craft store. They come in tons of colors but I like to dye my own so that they're slightly shaded. Satin ribbons take to dyeing very well and I use Rit dye for these so it's very affordable to do. To gather, just cute the ribbon into 5 inch lengths and do a running stitch along one edge. Gather it up, tie it off and sew it on. Easy as pie!