I wanna point this out for the people who doesn't know how to import the [toy_bonnie_systemerror.mdl] in Source Filmmaker...

First, you'll need the file location of your Source Filmmaker.
And you'll need a deviantart account
Press the download button, and you'll get a zip file.
http://fav.me/ddymfhe

Extract the zip anywhere (preferably in your desktop for quick access), then access your steam path.
Typically, it's located in
Local Disk>Program Files>Steam
Depending on the path, simply access:
Steam>Steamapps>Common>Source Filmmaker>Usermod

Your extracted file should have two folders, Models and Materials.
Move them to Usermod,
if it asked you if you wanted to merge them,
then go do it.
It will simply MERGE them and won't overwrite them...