As I\'ve already figured out, there is at least six of them: !@#$%&.
!@#$%&
Here is snip:
Dim A!, B@, C#, D$, E%, F& Debug.Print \"A! - \" & Typ
These are long since deprecated and only remain for backward compatibility AFAIK. Declare your variables as the type required. You can also coerce variables to type.