145 known values for skin with current usage counts:

1. default (21410× used)
2. red (16185× used)
3. green (10821× used)
4. follower (3883× used)
5. clown (1142× used)
6. trapper (949× used)
7. vampire (857× used)
8. lab_apprentice (795× used)
9. snowman (556× used)
10. helmet_banana (555× used)
11. og_white (469× used)
12. anniversary (446× used)
13. rural_fella (415× used)
14. cool_cap (410× used)
15. party_hat (396× used)
16. daisy (393× used)
17. gingerbread (309× used)
18. panda (233× used)
19. gift_box (227× used)
20. pumpkin (213× used)
21. monk (204× used)
22. black_dog (187× used)
23. og_purple (181× used)
24. dog (167× used)
25. builder (159× used)
26. anniversary_2 (156× used)
27. edm (153× used)
28. toaster (134× used)
29. demon (124× used)
30. tea_cup (119× used)
31. og_yellow (115× used)
32. og_pink (108× used)
33. cyborg_3 (99× used)
34. reindeer (91× used)
35. cyborg_1 (91× used)
36. elf (88× used)
37. grim_reaper (85× used)
38. green_spikes (81× used)
39. bad_cap (77× used)
40. detective (66× used)
41. wizard (65× used)
42. cubix (63× used)
43. evil_bot (60× used)
44. king (59× used)
45. grey_cat (57× used)
46. mummy (54× used)
47. cat (51× used)
48. joker (51× used)
49. peach (50× used)
50. sushi (50× used)
51. spikes (50× used)
52. yeti (49× used)
53. headset (48× used)
54. mad_scientist (47× used)
55. security_bot (45× used)
56. orca (44× used)
57. narwhal (44× used)
58. fries (43× used)
59. rplace (42× used)
60. parrot (39× used)
61. white_demon (38× used)
62. siren (38× used)
63. lunar_dragon (36× used)
64. ninja (33× used)
65. wolf (32× used)
66. angel (32× used)
67. shades (32× used)
68. bow_tie (32× used)
69. country_nl (31× used)
70. murica (31× used)
71. ghost (30× used)
72. eliminated (28× used)
73. cyborg_2 (27× used)
74. top_hat (26× used)
75. astronaut (25× used)
76. festive_lights (22× used)
77. shark_attack (22× used)
78. devil (22× used)
79. treasure_chest (20× used)
80. country_us (20× used)
81. alien (18× used)
82. rabbit (18× used)
83. bee_costume (17× used)
84. bandit (15× used)
85. country_fr (15× used)
86. tiger (15× used)
87. country_de (15× used)
88. scuba_diver (15× used)
89. curious_bot (15× used)
90. bunny_costume (14× used)
91. blue_dinosaur (14× used)
92. whale (13× used)
93. country_il (13× used)
94. country_gb (13× used)
95. ramen (13× used)
96. carrot_costume (12× used)
97. boby (12× used)
98. pirate (11× used)
99. country_se (11× used)
100. country_pl (10× used)
101. country_fi (10× used)
102. country_be (10× used)
103. country_au (10× used)
104. block (10× used)
105. country_it (9× used)
106. country_cz (9× used)
107. monkey (9× used)
108. dinosaur (9× used)
109. leprechaun (9× used)
110. cow (9× used)
111. country_no (8× used)
112. red_cocoa (8× used)
113. polar_bear (8× used)
114. country_ro (7× used)
115. unicorn (7× used)
116. fairy (7× used)
117. country_gr (6× used)
118. country_ca (6× used)
119. spy (6× used)
120. mecha (6× used)
121. shape (6× used)
122. science_adept (6× used)
123. country_ru (6× used)
124. firefighter (5× used)
125. nutcracker (5× used)
126. country_es (5× used)
127. mark (5× used)
128. burger (5× used)
129. yellow_crown (4× used)
130. country_hu (4× used)
131. country_ch (4× used)
132. steampunk (4× used)
133. hamster (4× used)
134. green_cocoa (3× used)
135. country_hr (3× used)
136. alice (3× used)
137. country_si (3× used)
138. popcorn (3× used)
139. artist (2× used)
140. burglar (2× used)
141. black_crown (1× used)
142. graffiti (1× used)
143. stinger (1× used)
144. cardboard_box (1× used)
145. icefox (1× used)