"Schrödinger's grapes" can only exist if they are observed. Thus, they exist since they are observed. Even a thing imagined can be said to exist if imagination is taken as a form of perception. All of which brings up an interesting idea. If I imagine Schrodinger's cat as dead, is it dead? And if another imagines it alive, is it alive? If the state of the cat is not known it is equally true that it is dead and alive, but is it equally true that it can be dead or alive at the same time for two different non-observers? But I digress. In response to the original posters original idea. I see it.
AJ