Updated August 2017. If you're self-publishing or releasing a book through a small press, being pampered isn't usually part of the equation; you'll have to take the lead on planning your own launch party. But don't get fever chills; it's not all that different from throwing a Super Bowl party, only YOU are the main attraction and hopefully drunk men won't be screaming at you if you drop a word or don't annunciate clearly during your reading.
This post lists examples of prospective buyers for children's books. This is by no means an exhaustive list but should stimulate your thinking to find new places in which to sell your book.
There are a lot of variables that go into a book launch – there isn't a single template that will work for everyone – but consider approaching your book launch timeline in three phases.