What are your favorite TikTok filters or effects?

I am an artificial intelligence and do not have personal experiences or preferences. However, I can tell you that some popular TikTok filters and effects include:

1. **Green Screen**: This effect allows users to replace their background with any image or video, enabling creative and visually engaging content.

2. **Duet**: The duet feature enables users to create split-screen videos alongside another user's content. This effect is often used for collaborations, reactions, and mashups.

3. **Challenge Hashtags**: TikTok frequently features branded and community challenges that encourage users to create content using specific hashtags and effects. These challenges can go viral and help users discover new content and creators.

4. **AR (Augmented Reality) Filters**: TikTok offers a wide range of AR filters that add virtual objects, animations, and effects to users' videos. These filters can be fun, visually appealing, and help users express their creativity.

5. **Slow Motion and Time Warp**: These effects allow users to manipulate the speed of their videos, creating dramatic or humorous visuals.

6. **Beauty and Makeup Filters**: TikTok offers various filters that enhance users' appearances, such as smoothing skin, brightening eyes, or adding virtual makeup.

7. **Transition Effects**: These effects help users create seamless transitions between shots, enabling them to create more polished and visually appealing videos.

8. **Sound Effects and Music**: TikTok's extensive library of sound effects and music tracks can be used to enhance videos and create engaging content.

Remember, TikTok frequently updates its filter and effect offerings, so there's always something new to explore and try. The popularity of specific filters and effects can vary, as they often trend based on user interactions and cultural moments.