You'll notice the fabric switching; I didn't test the dark pink fabric, which I'd never used before, and my machine didn't like it! So I switched to more appropriate fabric. I'm not great at explaining things and this isn't really much different from sewing diapers, but there's been some interest so here goes:
Print out the pattern at 100%, no stretching:
This is actually a scaled down version of the RRP, though perhaps not exactly the same. I'll be trying out a few other patterns as well and will add them if they work out.
Cut your fabrics; for best results, try to use thin ones that aren't prone to fraying. You'll notice I don't take my own advice ;) If you do use a fraying fabric, put it on top so you can be absolutely sure the stitching stays far enough away from the edge. I neglected to do this once and it pulled apart when I turned it!
Lay them right sides together and pin like crazy. Overkill? Sure is, but better safe than sorry.
Starting at one side of the pocket, sew together with 1/4" seam allowance (as marked on the pattern) and the smallest straight stitch possible.
Trim the seam allowance on only non-fraying fabrics and clip/notch the curves for a smoother appearance.
Turn, insert ribbon into the pocket, and topstitch. Actually, I recommend using a machine to stitch the pocket shut and doing the rest by hand. Machine is quicker, but because the tabs are so small the feed dogs are fairly useless and...well, it just doesn't come out well:
See? Pretty wacky. Patience and a needle will give you a much better result.
Grab a needle and thread and baste from one elastic point to the other. Or you can gather while topstitching by hand - just tie a knot at the first elastic point, continue topstitching, then pull tight, tie off again at the other elastic point and continue on your way.
One leg gathered...
Fold up, close off with a tiny safety pin, et voila! It's ready to go on your keyring.
Another option (for a slightly larger keychain) is to use fabric glue to attach the two layers and do a faux serge stitch around the edge. Fabric glue stiffens it though, so I've yet to find a way to force it into a decent shape: