LoadPicture from existing image/shape

I have about a dozen pictures that I have manually put into sheet 2. In sheet 1 I have a button that launches a user form that has nothing in it. I just want it to pop up and I want to dynamically change the background image (UserForm.Picture property) to one of the pictures from sheet 2. However, I don't have the file paths. I want this to all be self-contained. I have manually changed the names of the images so they're easy to remember and identify. I have tried doing something like this with no luck:

MyUserForm.Picture = MyPictureControlName 'one of the 12 pictures
MyUserForm.Show

But this throws an error.

LoadPicture is great, but requires a file path, which I don't have.

Ideas?

Thank you!

Still strikning out here. It seems so simple that if an object has a property that IS a Picture object that you should be able to just say Object.PropertyThatIsAPicture = APictureObject But leave it to VB, right? It's especially odd because VB is usually so forgiving in syntax, loose data typing, etc.