We asked the BuzzFeed Community to send us their Halloween costume fails. Here are the results:
1. Identity theft:

2. Tana Mongeau:

3. SpongeBob, Patrick, and Gary:

4. Onion/sperm:

5. Error 404:

6. Britney from Alvin and the Chipmunks: The Squeakquel:

7. Grass:

8. Elsa or Anna from Frozen:

9. Static electricity:

10. Kidney/kidney stones:

11. Frank-N-Furter from The Rocky Horror Picture Show:

12. Leela from Futurama:

13. A flying pig:

14. Blue Man Group:

15. Troll dolls:

16. Justin Timberlake:

17. Cards Against Humanity:

18. Primary school teacher:

19. Rubik's Cube:

20. "Wrecking Ball" video:

21. Whatever they could find:

22. Cupcake:

23. Hipsters:

24. Edward Elric from Fullmetal Alchemist:

Submissions have been edited for length and/or clarity.