I recently designed my own wedding invitation with help from a very dear designer friend @Reka, she hasn't started showing her work on dribbble yet but with a little encouragement maybe she will soon. Any who she also has a letterpress and even let me and my fiancé help bang these bad boys out!
There was a cute blog post about the press job here, http://weddinglovely.com/blog/featured-invitation-simply-for-you/