Bonni,
I have Tobin's book too signed by a descendant. If you want a quick rundown she suggests Monkey wrench, wagon wheel/carpenters wheel, bear paws, crossroads, log cabin, shoofly, bow ties, flying geese, drunkards path and follow the stars (star, evening star, north star).
There is also some speculation that the way the quilts were hung out to "air" provided some of the information to slaves who weren't allowed to learn to read.