1. Implement a Todo List: Create a simple to-do list application where users can add, edit, and delete tasks.

2. Build a Weather App: Develop a weather application that fetches weather data from an API and displays it to the user.

3. Create a Pagination Component: Design a pagination component that handles navigation between pages of data.

4. Implement a Login Form: Build a login form with validation for email and password fields.

5. Build a Countdown Timer: Develop a countdown timer component that starts from a specified time and decrements until it reaches zero.

6. Create a Modal Component: Design a modal component that can be toggled open and closed.

7. Implement Drag and Drop: Develop a feature that allows users to drag and drop items within a list.

8. Build a Chat Application: Develop a real-time chat application using WebSockets or a library like Socket.io.

9. Create a Dropdown Component: Design a dropdown component with options that can be selected by the user.

10. Implement Form Validation: Develop a form with validation for various fields such as email, password, and phone number.

11. Build a Carousel Component: Design a carousel component that displays a slideshow of images or content.

12. Create a Responsive Layout: Develop a responsive layout that adjusts based on the screen size and orientation.

13. Implement Redux Store: Set up a Redux store and integrate it with a React application to manage state.

14. Build an Infinite Scroll Component: Develop a component that loads more data as the user scrolls down the page.

15. Create a Quiz Application: Develop a quiz application where users can answer multiple-choice questions and see their score at the end.