Fabulously fun for your family and friends, these tongue twisters can trip up even the most talented talker. Green goblins giggle in a dragon's dingy domain. Worms writhe and snakes slither toward menacing mice, all while puppies prance perkily. Tongue twisters have been around since the first humans tried to speak to each other and stumbled over their words. Every language, including sign language has them because they're fun and challenging. They...