I have been given permission by Nysha to upload the "Get Cool Stuff" for the Stories Games and here they are for all to enjoy.
To be able to install them you must have the Stories game they belong to other wise they will not install.
There are 9 items for Life Stories.
There are 9 Items for Pets Stories.
There are 4 items for Castaway Stories.
Would it be possible for you to provide the *.package files instead of the *.simsPSPackage / simsLSPackage / simsCSPackage?
For me none of the SimsPackage-Installers is working on macOS, the only way for me to install these add-ons is by copying the *.package-files directly into the downloads folder.