For the backing card I wanted to make sure its usable for typical hanging solutions like in stores. The image shows how this shape is made and its meassurements. So use it as own if you want to resize my templates.

I used prisms and added cardstock on top. Make sure to watch it as paper can easily burn.

1. Get your keychain
2. Insert Ring into cutout
3. Done

Its a nice addition that could be handy for branding and selling your keychains ins stores.

I hope you liked this idea. It's a very quick addition to your product and makes it look more professional. 

~Anzy