With one strand each of A and B held together, chain 8.
Row 1: Half double crochet in 3rd chain from hook and each chain across - 7 stitches at the end of this row (don't forget the beginning 2 chain counts as a stitch).
Row 2: Chain 2 (counts as a stitch), turn, skip the first half double crochet, half double crochet in each half double crochet across, half double crochet in top of the beginning chain 2.
Repeat Row 2 until almost all of the yarns have been used. Fasten off.
Weave in ends.