A great deal can also be done with female genitalia. Some women love having clothespins on their pussy lips; some love light whipping on their outer labia, or even their clitoris. Sometimes body piercings can be used for bondage; labia piercings can hold a pussy open very delightfully, or clit hood piercings can be tied up out of the way with thread, leaving the clit naked and exposed. Some women like soft fur on their pussy; others like to be alternately soothed and tormented until they can stand no more.
Again, go slowly. Do NOT blow into the vagina, whatever else you do. Don't leave clamps on very long until you know how much your partner enjoys (and how it will feel to her the next day when the scene is over). Too much of one kind of sensation can become irritating quickly; change the stimulation, keep your bottom aroused and surprised. There are all sorts of things that can be used on female genitals; one article I have lists "bamboo skewers, candles, cheese graters, clips, flyswatter, ice cubes, knives, latex squares, leather thongs, massage bongers, rabbit fur, ropes, scalp scrubber, silk, spoons, towels, weights, and whips" as items that can be useful in giving your bottom's genitals a ride they won't forget. (And no, you don't do this until you cause real damage, any more than you do with male genitals. Don't be scraping, scabbing, or scarring--these are the most sensitive parts of the body you're playing with!)
Communication is paramount in female genital play; women's pussies vary as much as any other part of women's bodies (or more), and responses will vary equally dramatically. In general, the same sort of rhythm discussed in the whipping section is useful in cunt play, though if anything the top needs to go even more slowly, as the sensations will be more intense and focused than in almost any other kind of sensation scene.
One final tidbit: apparently, for many women, a common pre-orgasmic response is for the clit to retreat into its hood. If you are giving your partner some very delicious sensation (possibly combined with some just-right pain) and her clit disappears, DON'T STOP! (Unless you want to avoid her orgasm... don't push this too far, unless your bottom's feet are tied down--she may kick.) And know your limits; if your bottom really wants an orgasm to end the scene, giving her one may make her EXTREMELY grateful to you, and waiting too long may burn you both out. This is good stuff to negotiate about beforehand in any scene -- how would you like the scene to end? Breaking such an agreement will engender mistrust, but honesty, as always, will help everyone get what they want.