Creating a dock item?

I have several iPhoto libraries. Call them Lib1, Lib2. If I double-click one of them in Finder, it opens it in iPhoto nicely. If I click on the iPhoto icon in the dock, I get the last library that I opened.

Is there a way that I can put Lib1 and Lib2 onto the dock, so I can just click on the one I want?

Or have 2 iPhoto icons, one that opens Lib1 and another for Lib2?

Fanks! :D