This was triggered from the search for "Gus is A Bug", I have a similar problem except I have no I idea what the book is called. All I know is the main Character loves moon pies. Yes, the more awesome packaged version of s'mores that you can by at Walgreens (and other places I guess..).
It was a book I remember reading as a kid and the memory was trigger when I found moon pies at a Walgreens on one of the many trips I have to take off island. So all I know is it has to do with moon pies, and if you actually know anything about a book involving moon pies, please tell me.
by the way, I'm 13. Probably will be helpful.