Just thought I'll share a couple of templates I've made since this thread has been so helpful to me and I'm always checking back here for information, so I felt as though I should give something back.
(Apologies in advance, I don't know how this site works with images and these are quite big, I hope they upload nicely and if not, I'll upload them somewhere else and give the links.)
For the GOOD NIGHT on Harley's bat, I used the Bernard font people have been suggesting and put it on top of a photo and warped the letters in photoshop until they matched the reference more accurately.
I had to re-draw most of the G and I'm really pleased with the result.
Here's a text comparison:
And here's an image of the text ready to print onto A4 paper (if you want to use it, make sure you check it's the size you want and check the space between the words. I also added a border around each letter after drawing them onto my prop because I wanted the letters to be thicker.):
I've also done the Daddy's Lil Monster on her shirt. I used a few different types of the Jezebel font to get all the letters looking as close as possible (for example you can see that there are two different types of S in the reference image.) I also did a bit of warping in Photoshop to get the angles and general shapes looking close.
Here you can see the reference I used next to the template I made:

And here's an image ready for printing onto iron-on transfer paper:
I also wanted to point out that Harley's choker uses a "locking buckle" (the tongue/prong has a loop on the end that you can put a padlock through)
This image is a clear example of the type of buckle I believe they've used for her choker:
She also *sometimes* has a heart-shaped padlock. Here's one of my research pages along with a couple of items I thought looked very close:
