some tongue twisters with /v/ and /w/

1. Wild vines make fine vintage wines.
2. Victor’s friend Vincent rinsed his vests in vinegar.
3. Vivacious Vivian loved to voice vigorous verses vociferously.
4. Stephen vainly viewed vast vales with vacant eyes.
5. Vincent vowed vengeance very vehemently.
6. Woollen vests for wailing wolves are worn in the vast woodlands. 
7. For once, weary Wanda's woolgathering lost its vim and vigour.
8. Which witch winds white weasel wool well?
9. Very volatile vets visited several wives.
10. Which is worse verse - Wendy's verse or Wayne's verse?

Enjoy!