55 known values for icon with current usage counts:

1. default (32099× used)
2. angel_wings (8817× used)
3. crown (6597× used)
4. joystick (6474× used)
5. moon (4260× used)
6. sakura (2424× used)
7. cat (2033× used)
8. dog (1731× used)
9. spider (1232× used)
10. pumpkin (729× used)
11. vampire (630× used)
12. headphones (556× used)
13. target (520× used)
14. sunglasses (516× used)
15. moustache (370× used)
16. skill_issue (320× used)
17. coffee (301× used)
18. panda (208× used)
19. snowflake (159× used)
20. santa (109× used)
21. pirate_flag (86× used)
22. king (74× used)
23. wizard (74× used)
24. reindeer (72× used)
25. octopus (68× used)
26. yeti (55× used)
27. rocket (50× used)
28. lunar_dragon (50× used)
29. wanted (49× used)
30. bad_bunny (49× used)
31. mountains (46× used)
32. koala (46× used)
33. bingo (36× used)
34. bread (35× used)
35. ghost (34× used)
36. pyramid_eye (33× used)
37. planet (32× used)
38. cactus (27× used)
39. pirate (26× used)
40. robot (23× used)
41. shark_attack (22× used)
42. eliminated (22× used)
43. watermelon (18× used)
44. cute_bunny (17× used)
45. jailbreak (15× used)
46. fossil (12× used)
47. clover (9× used)
48. ankh (6× used)
49. pine_tree (5× used)
50. random (4× used)
51. shooting_star (2× used)
52. bauble (2× used)
53. build_off (2× used)
54. palette (1× used)
55. eleven (1× used)