That would be a great event and in the spirit of Stellafane! However, only four scopes come to mind that would fit the specs (custom and hand-built from top to bottom) of this ... beauty contest! On the other hand if such an event was to take place, I think/hope more ATMs might consider showing up. In any case, the homemade scopes in display will definitely be very few, but it would be a wonderful start and many more people will be encouraged to present and talk about their homemade sweethearts I think Fred's proposal is an excellent idea, well worth to be taken into consideration! As a side note, I can't think of any major astro-party worldwide that does not have some sort of ATM display. After all, make-do and home made stuff is and has always been part of the genuine spirit of amateur astronomy!