increase size of icons on toolbar

[BenB]

i have designed a cusom toolbar using built-in faces and my own macros as the
on-action. I want to make this toolbar larger, but when i enlarge the
buttons the face icons on the buttons remain the same size. how can i
enlarge these (without enlarging every button on every toolbar) ideally how
do i do it programmatically.

 

[BenB]

You are able to specify the width and height of a button but the icon remains
the same size and just sits in the centre of the button.

Application.CommandBArs(CommandBar Index).Controls(1).Width = x
Application.CommandBArs(CommandBar Index).Controls(1).Height = y

thanks,
ben