Sure! Here’s how you can practice these tongue twisters both in writing and speaking.

### Writing Practice

1. **Picky people pick Peter Pan Peanut Butter.**
2. **Peter Pan Peanut Better is the peanut butter picky people pick.**
3. **The big black bug bit the big black bear, but the big black bear bit the big black bug back.**
4. **Black background, brown background.**
5. **Plain bun, plum bum, bun without plum.**

### Speaking Practice

1. **Read each tongue twister slowly at first.** Focus on pronouncing each word clearly.
2. **Gradually increase your speed.** Once you're comfortable with the pronunciation, try saying it faster while maintaining clarity.
3. **Practice with a friend or record yourself.** Hearing someone else or listening to yourself can help identify tricky spots.
4. **Repeat each tongue twister multiple times** (3-5 times per session) for effective practice.

Remember to have fun with it, and don't get discouraged if you stumble—it's all part of the challenge! Happy practicing!