153 known values for skin with current usage counts:

1. default (21537× used)
2. red (16282× used)
3. green (10910× used)
4. follower (3937× used)
5. clown (1143× used)
6. trapper (945× used)
7. vampire (857× used)
8. lab_apprentice (797× used)
9. snowman (558× used)
10. helmet_banana (555× used)
11. og_white (470× used)
12. anniversary (446× used)
13. rural_fella (414× used)
14. cool_cap (410× used)
15. party_hat (398× used)
16. daisy (388× used)
17. gingerbread (308× used)
18. panda (232× used)
19. gift_box (226× used)
20. pumpkin (213× used)
21. monk (205× used)
22. black_dog (186× used)
23. og_purple (181× used)
24. dog (166× used)
25. builder (160× used)
26. anniversary_2 (157× used)
27. edm (149× used)
28. toaster (132× used)
29. demon (126× used)
30. tea_cup (120× used)
31. og_yellow (115× used)
32. og_pink (108× used)
33. cyborg_3 (97× used)
34. cyborg_1 (93× used)
35. reindeer (91× used)
36. elf (89× used)
37. grim_reaper (85× used)
38. green_spikes (84× used)
39. bad_cap (78× used)
40. detective (66× used)
41. wizard (65× used)
42. cubix (62× used)
43. evil_bot (61× used)
44. king (57× used)
45. grey_cat (57× used)
46. joker (55× used)
47. mummy (54× used)
48. cat (51× used)
49. sushi (51× used)
50. headset (50× used)
51. spikes (50× used)
52. mad_scientist (50× used)
53. peach (49× used)
54. yeti (48× used)
55. narwhal (45× used)
56. security_bot (44× used)
57. orca (42× used)
58. rplace (41× used)
59. fries (40× used)
60. siren (38× used)
61. white_demon (37× used)
62. lunar_dragon (36× used)
63. parrot (35× used)
64. shades (34× used)
65. ninja (34× used)
66. wolf (33× used)
67. angel (33× used)
68. murica (32× used)
69. ghost (31× used)
70. country_nl (30× used)
71. bow_tie (29× used)
72. eliminated (28× used)
73. cyborg_2 (27× used)
74. top_hat (26× used)
75. astronaut (25× used)
76. shark_attack (24× used)
77. festive_lights (23× used)
78. treasure_chest (20× used)
79. devil (20× used)
80. country_us (19× used)
81. apple (19× used)
82. rabbit (18× used)
83. alien (18× used)
84. bee_costume (17× used)
85. scuba_diver (15× used)
86. curious_bot (15× used)
87. whale (15× used)
88. tiger (15× used)
89. country_fr (15× used)
90. country_de (15× used)
91. ramen (14× used)
92. bunny_costume (14× used)
93. blue_dinosaur (14× used)
94. bandit (14× used)
95. country_il (13× used)
96. country_gb (13× used)
97. boby (12× used)
98. leprechaun (11× used)
99. carrot_costume (11× used)
100. pirate (11× used)
101. country_se (11× used)
102. country_fi (11× used)
103. block (10× used)
104. country_pl (10× used)
105. monkey (10× used)
106. country_be (10× used)
107. country_au (10× used)
108. cow (9× used)
109. country_it (9× used)
110. country_cz (9× used)
111. dinosaur (9× used)
112. red_cocoa (8× used)
113. pineapple (8× used)
114. country_ro (8× used)
115. country_no (8× used)
116. science_adept (7× used)
117. fairy (7× used)
118. spy (7× used)
119. mecha (7× used)
120. mark (7× used)
121. shape (7× used)
122. country_ru (6× used)
123. unicorn (6× used)
124. country_gr (6× used)
125. country_es (6× used)
126. country_ca (6× used)
127. firefighter (5× used)
128. nutcracker (5× used)
129. steampunk (5× used)
130. icefox (4× used)
131. burger (4× used)
132. polar_bear (4× used)
133. country_si (4× used)
134. green_cocoa (4× used)
135. country_hu (4× used)
136. country_ch (4× used)
137. popcorn (3× used)
138. hamster (3× used)
139. fossil (3× used)
140. country_hr (3× used)
141. laurel (2× used)
142. burglar (2× used)
143. yellow_crown (2× used)
144. black_crown (2× used)
145. firefox (2× used)
146. artist (2× used)
147. alice (2× used)
148. cardboard_box (1× used)
149. pig (1× used)
150. white_crown (1× used)
151. banana (1× used)
152. stinger (1× used)
153. alfie (1× used)