App that simply copies folders to user's computer

I wish to create an "App" for the Mac App Store that would basically be an installer for a collection of templates I've created. The templates are for an existing app that is already installed on the user's computer. The templates simply need to be copied into a particular folder. I'm more designer than developer and looking for the simplest way to create this "installer" app. Could the app be as simple as a dialog box asking the user to click the install button to copy the templates? I know this is a simple "app" for you guys - but I don't know the best place to begin. Any helpful advice is appreciated - or if you know of some type of Xcode project that I could use for a skeleton, as I'm a bit lost. I wish Apple provided a generic Xcode project for designer's that did this. Is there a pattern or demo or project for this type app? Thank you!