PW Guide Article: Calligraphy for Beginners

The person in the photographs is holding the pen completely wrong. They should just use a straight nib holder, because the way they are holding it completely defeats the purpose of having it be oblique.

ditto shannons.  That is the route I am going.  If nothing else it will help decrease my mistakes!

I don't want to offend but you can't fake it, bad handwriting is bad no matter what tool you use. And if you're going to use an "unusual" tool at least learn to use it properly before you try to teach others how to use it. There are wonderful videos on YouTube that will help you figure this out. Otherwise, please, cut corners elsewhere and hire a professional to do your invitations.