140 known values for skin with current usage counts:

1. default (19167× used)
2. red (14834× used)
3. green (9846× used)
4. follower (3362× used)
5. clown (1147× used)
6. trapper (934× used)
7. vampire (830× used)
8. lab_apprentice (800× used)
9. snowman (557× used)
10. helmet_banana (550× used)
11. og_white (464× used)
12. anniversary (444× used)
13. rural_fella (414× used)
14. party_hat (403× used)
15. cool_cap (399× used)
16. daisy (395× used)
17. gingerbread (308× used)
18. gift_box (233× used)
19. panda (224× used)
20. pumpkin (208× used)
21. monk (192× used)
22. black_dog (190× used)
23. og_purple (175× used)
24. dog (165× used)
25. builder (159× used)
26. edm (153× used)
27. anniversary_2 (150× used)
28. toaster (128× used)
29. demon (121× used)
30. tea_cup (119× used)
31. og_yellow (111× used)
32. og_pink (108× used)
33. cyborg_3 (94× used)
34. elf (90× used)
35. green_spikes (89× used)
36. cyborg_1 (85× used)
37. reindeer (84× used)
38. grim_reaper (82× used)
39. bad_cap (79× used)
40. wizard (68× used)
41. detective (65× used)
42. cubix (62× used)
43. evil_bot (59× used)
44. grey_cat (55× used)
45. spikes (51× used)
46. yeti (50× used)
47. peach (49× used)
48. headset (48× used)
49. cat (47× used)
50. security_bot (45× used)
51. king (43× used)
52. parrot (41× used)
53. rplace (40× used)
54. fries (37× used)
55. lunar_dragon (37× used)
56. sushi (35× used)
57. murica (34× used)
58. orca (33× used)
59. ninja (32× used)
60. narwhal (32× used)
61. siren (31× used)
62. shades (31× used)
63. angel (30× used)
64. country_nl (30× used)
65. ghost (29× used)
66. shark_attack (29× used)
67. cyborg_2 (29× used)
68. joker (28× used)
69. wolf (28× used)
70. mad_scientist (27× used)
71. astronaut (26× used)
72. top_hat (26× used)
73. white_demon (26× used)
74. bow_tie (25× used)
75. festive_lights (23× used)
76. country_us (21× used)
77. treasure_chest (20× used)
78. country_fr (18× used)
79. devil (17× used)
80. scuba_diver (16× used)
81. alien (15× used)
82. country_de (15× used)
83. curious_bot (15× used)
84. blue_dinosaur (15× used)
85. tiger (14× used)
86. country_gb (14× used)
87. bunny_costume (14× used)
88. whale (14× used)
89. rabbit (14× used)
90. bandit (14× used)
91. pirate (12× used)
92. country_il (12× used)
93. eliminated (12× used)
94. country_au (12× used)
95. block (11× used)
96. country_se (11× used)
97. country_fi (10× used)
98. carrot_costume (10× used)
99. ramen (10× used)
100. country_pl (10× used)
101. dinosaur (9× used)
102. country_be (9× used)
103. boby (9× used)
104. country_no (9× used)
105. country_it (8× used)
106. country_cz (8× used)
107. leprechaun (8× used)
108. spy (7× used)
109. shape (7× used)
110. cow (7× used)
111. country_ro (7× used)
112. unicorn (7× used)
113. fairy (6× used)
114. country_ca (6× used)
115. monkey (6× used)
116. mark (6× used)
117. bee_costume (6× used)
118. country_gr (5× used)
119. country_es (5× used)
120. burger (5× used)
121. science_adept (5× used)
122. country_ru (5× used)
123. country_hu (4× used)
124. firefighter (4× used)
125. country_ch (4× used)
126. stinger (4× used)
127. country_hr (3× used)
128. nutcracker (3× used)
129. country_si (3× used)
130. popcorn (3× used)
131. artist (2× used)
132. alice (2× used)
133. alfie (2× used)
134. mecha (2× used)
135. steampunk (1× used)
136. cardboard_box (1× used)
137. yellow_crown (1× used)
138. white_crown (1× used)
139. black_crown (1× used)
140. graffiti (1× used)