Put a custom image in a CommandBar Control?

I have a 16x16 image that I want to use for a context sensitive menu item I created. When a user right-clicks on a cell, the Cell CommandBar menu displays and my custom addition is at the bottom. I would like to put my own custom image in there instead of using a stock FaceId value. How do I do this? Can I have the image saved within the workbook (in a xlVeryHidden sheet) instead of having to load it? For example, I don't want :

.Picture = LoadPicture("C:\adidas_commandbar1.JPG")

I'd rather do something along the lines of (I want to reference the image from within the workbook):

.Picture = Sheets("Reference").Pictures("Picture 1")

Here's my code so far and it works:

Dim cbItem As CommandBarControl
    Set cbItem = Application.CommandBars("Cell").Controls.Add  'Add new menu item
    With cbItem
        .BeginGroup = True  'Add separator bar
'        .FaceId = 2138  ' I don't want to use this method!
        .Picture = LoadPicture("C:\adidas_commandbar1.JPG")
        .Caption = "Transfer Data to Master Sheet"  'Menu item caption (what the user sees on the menu
        .OnAction = "'" & ThisWorkbook.Name & "'!PullData"  'Run this macro if selected
    End With