Below is a list of all the Hogwarts Elves and how you can save them. Send all items to the Headmistress. If you save 5 elves, you become an Honorary SPEW member. For every elve you earn 50 hp.
1. Dobby - 1 Purple Negg
2. Rodrigo - 1 Orn Codestone
3. Carolyn - 1 Snowbunny
4. Morcaud - 1 Earth Faerie
5. Kathy - 1 Mau Codestone
6. Kreacher - 1 Light Faerie
7. Mastorio - 1 Christmas Pet-Pet Paintbrush
8. Elbony - 1 Fire Faerie
9. Torago - 2 stacks of Ghost Pancakes
10. Libora - 1 Smiley Negg
11. Sue-zee - 1 Lu Codestone
12. Winky - 1 Air Faerie
13. Babs - 1 Spooky Treasure Map Piece
14. Little Ben - 1 Whoot
15. Cory - 1 Candychan Stamp
16. Sean -1 Witchcraft Spells
17. Jon - 1 Glamour Negg
18. Juno - 1 Happiness Negg
19. Shevy - 1 Dark Faerie
20. Claudia - 1 Main Codestone
21. Marie - 2 Neggs
22. Carol - 1 Water Faerie
23. Lolorox - 1 Eo Codestone
24. Cassidy - 1 Whoot
25. Bobbee - 1 Bri Codestone
26. Stockings - 1 Honey Wand
27. Cali - 2 Magic Hats
28.Megs - 1 Malice Potion
29. Chris - 1 Fire and Ice Slushie
30. Cait - 2 Slime Potions
31. Sacru - 2 bags of Assorted Jelly Beans
32. Zeke - 1 Sparkling Apple Juice
33. Jamie - 1 Zei Codestone
34. Betamin - 1 Har Codestone
35. Sybil - 2 Magic Spells books
36. Helga - 1 Eo Codestone
37. Rowena - 2 Magic Spells books
38. Godric - 1 Har Codestone
39. Salazar - 1 Eo Codestone
40. Thomas - 1 Strawberry Scorchio Treat
41. Claudia - 2 Bottles of Love
42. Bubbles - 1 Mint Explosion Ice Lolly
43. Jekyll - 1 Elephante Ice Cream
44. Hermy - 2 Magic Vials
45. Bella - One Dubloon Coin
46. Hairy - 2 1/2 Dung Pizzas
47. Daisy - Chocolate Negg
48. Sparkx - 1 2 Dubloon Coon
49. Blue - 1 Ice Negg
50. Luke - 1 Tar Pit Stamp
51. Bridget - 1 Brain Tree Stamp