вчера/сегодня/завтра - as nouns?

[david-us.livejournal.com]

In English, yesterday/today/tomorrow can be used as both adverbs and nouns. Although, the adverbial use is much more common.

I'm wondering if it is possible to use these as nouns in Russian.

For instance, there is a book (in English) entitled "How Many Yesterdays Are In a Million Years?"

There is an organization with the name "Peaceful Tomorrows."

What if I wanted to get all poetic and say something like: "There will never be a yesterday that brings more hope than a tomorrow"?

How would a Russian say these things?

David Emerling
Memphis, TN