These are tales that I:

1) Can't find; or

2) Aren't actually fairytales, but are part of a series that supposedly has something to do with fairytales

Hasan by Piers Anthony

The Vizier's Second Daughter by Robert Young

Seven Sons and Seven Daughters by Cohen and Lovejoy (Unnamed Iraqi Folktale)

The Sun, The Moon and The Stars (Hungarian)

The Sun, The Moon and The Stars by Steven Brust

Bacchus

You Go To My Head by Bobby Hutchinson

Christmas Legends

I'll Be Seeing You by Christine Rolofson

Unicorns

The Virgin and the Unicorn by Kelly Street

Arthurian

Naughty Talk by Tiffany White (Legend of Gawain)