The TCA did have a "Night at the Museum" some years ago where a parent and a child spent the night at the Toy Train Museum. Perhaps more events like this is what you are talking about. I don't know why they stopped having it or if it was any good or not.
From what I recall reading, the program was well received. Here is one problem: the TCA is a national organization. Realistically, the "Night at the Museum" program will only service TCA members who live within a certain distance from the museum. TCA national has to give consideration such things. IMHO, this sort of program is better done by divisions. Maybe some divisions already have some family or public facing activities.
