VB user defined types

Hi

For computing coursework i'm allowed to use my ASP Live Support.  100% fine said the teacher!  2 months later, actually its not ok.  You need to use user defined types.  ASP can't do that, you need to do it all in VB.

Well, I argued, and eventualy put forward the idea of creating an Active X DLL to use with the ASP code to make the examiners happy as I can jam in some useless user defined stuff in there. 

Does anyone have any idea what I can do, something simple with user defined types?  I'm stuck and really need to make this component.  Nothing hard, just some real simple DLL with some user defined types!

Thanks

Tom