I think my favorite idea from the book was to have an end-of-quarter (or year) celebration of homeschool.  Have a little party with family, make a special meal or snacks, and decorate with the fruits of your homeschool labor.  Display their best work on the walls, and have a recital or performance.  The children can recite Bible verses or passages they've memorized, solve oral math problems, play a piece on an instrument, and so on.

I thought this would be a really great way to show family (including dad) what you've been doing with homeschool.