I've been working on a cluny heart pattern and realize not everyone is thrilled about cluny weaving. So you could decide to substitute two split-rings if you like.
This is close up of some work done.
When making split rings and using variegated thread, keep in mind where one side mixes with another there will be two colors that show like picture below.
This can be avoided by adding third shuttle which I have not done yet on any of these.
The little purple heart is done in size 40 the others are all size 20 with exception of the white trimmed heart the inside is an odd out of production color and size I can not remember.
If you are interested in the directions e-mail me and I will send you this PDF file free or If you need a hard copy I can send you one for cost of postage and paper.