So, I just finished my first play through of Dark Souls 2 and discovered a few things. First of all; maintaining your human form is a lot easier than in previous Soul games.
First off, Human Effigies aren't too rare. But, if you don't feel like spending them each time you want to record some content there are easier ways.
For one, there are in game rings called "Ring of Life Protection" and "Ring of Soul Protection" which, break upon death, but allow you to keep your humanity, and your souls. Now here's the thing. These rings break, yes, but can be repaired by a blacksmith for 3000, and 6000 souls respectively. They never are destroyed or removed from your inventory, so you can repair them and remain human for as long as you have the souls to repair them. You can obtain two Rings of Life Protection in one run through of the game, and a Ring of Soul Protection, which means you have three chances before you have to repair them.
If those rings seem like too much effort, late into the game you can do a rather easy and semi-short side quest to obtain a ring that allows you to maintain your human appearance, even while Hollow. While it's only appearance (and your health will decrease as per Hollowing) it should be more than enough for content creators.
Just a few things to keep in mind. I'm playing through the game for the second time and I'm going to let some of the more interesting monsters have their way with my gal. I won't be able to record content, but I'll let you know of any worthwhile scenes.