I came up with this way of making a pointy chain as I was unhappy with the other solutions (such as using a lock stitch). I find using a one-stitch self-closing mock ring (a bit of a mouthful!) gives the shape I was looking for.
by Fire Mountain Gems and Beads
by Charmed By Ewe
by Cutie Girl Crochet
by New Stitch a Day: Knitting and