BundleMaker

Drag & drop creation of application bundles.The preferences can be used to decide which components to include in the bundle: Application (data fork) Application.icns (OSX Icons) Application.rsrc (resource fork) PkgInfo Info.plist Alternatively, the data and resource forks can be exported by themselves instead of into an Application Bundle heirarchy.

Source code is available on the website.
What's new in this version:
A new preference to automatically quit after creating a bundle.