Thank you so much for this! I'm attempting (ha!) a reimagined fem!Loki cosplay for a con next month and I really wanted to do a cape but had no idea where to start. This is perfect, and so simple even I can follow it
I really love the designs you've done for this! I was wondering though... how long was the cape in the end? I've been looking for some good ways to attach the cape for my own Loki cosplay but it's hard since the cape will be very heavy since I'm making it to come down to the floor when I stand in the costume.
Hmm, I think it ended up being about 5 feet. It didn't quite brush the ground as I walked (which I wanted, since convention center floors can get nasty), and I was lucky that the broadcloth was just about the perfect width once I ironed it out. You also have to remember to allow for draping-- in the actual movie cloak, it looks like there are panels sewn in to give it a wider, more billowing effect, and some of the folds are sewn in, particularly in the areas around the armor.
The fabric I used was also a very high end cotton, so it had that rich, gorgeous color and billowing effect without weighing too much. You don't say what kind of fabric you're using, but there's no reason you can't use the button/loop fastening trick I used. You might have to double or triple the number of loops and buttons (especially if you're using something heavy like wool), and maybe get some stronger cord instead of ribbon, but the concepts should still work.
I suggest you invest in a few yards of muslin to experiment and see what length works best for you (this is when having a dressform/cosplay buddy comes in handy). That way you can spend like 3 bucks and make a mock-up that will allow you to play around with the shape and drape until it's just right.