156 known values for skin with current usage counts:

1. default (21923× used)
2. red (16593× used)
3. green (11104× used)
4. follower (4161× used)
5. clown (1144× used)
6. trapper (970× used)
7. vampire (871× used)
8. lab_apprentice (798× used)
9. snowman (555× used)
10. helmet_banana (552× used)
11. cool_cap (477× used)
12. og_white (473× used)
13. anniversary (452× used)
14. daisy (441× used)
15. rural_fella (413× used)
16. party_hat (388× used)
17. gingerbread (306× used)
18. panda (229× used)
19. gift_box (222× used)
20. monk (214× used)
21. pumpkin (212× used)
22. black_dog (193× used)
23. og_purple (183× used)
24. dog (166× used)
25. anniversary_2 (163× used)
26. builder (160× used)
27. edm (157× used)
28. toaster (139× used)
29. demon (131× used)
30. tea_cup (122× used)
31. og_yellow (118× used)
32. cyborg_3 (110× used)
33. og_pink (109× used)
34. cyborg_1 (89× used)
35. grim_reaper (89× used)
36. green_spikes (88× used)
37. reindeer (88× used)
38. elf (85× used)
39. bad_cap (80× used)
40. detective (73× used)
41. wizard (69× used)
42. joker (64× used)
43. cubix (62× used)
44. evil_bot (62× used)
45. narwhal (60× used)
46. king (60× used)
47. grey_cat (59× used)
48. sushi (59× used)
49. orca (57× used)
50. mad_scientist (57× used)
51. mummy (52× used)
52. cat (51× used)
53. headset (49× used)
54. peach (48× used)
55. spikes (48× used)
56. yeti (48× used)
57. parrot (44× used)
58. security_bot (44× used)
59. fries (42× used)
60. white_demon (41× used)
61. anniversary_3 (40× used)
62. eliminated (38× used)
63. rplace (38× used)
64. lunar_dragon (38× used)
65. siren (36× used)
66. ninja (36× used)
67. bow_tie (35× used)
68. shades (35× used)
69. angel (34× used)
70. murica (33× used)
71. wolf (32× used)
72. country_nl (31× used)
73. ghost (29× used)
74. cyborg_2 (29× used)
75. top_hat (27× used)
76. astronaut (27× used)
77. shark_attack (25× used)
78. alien (24× used)
79. devil (23× used)
80. festive_lights (21× used)
81. whale (21× used)
82. treasure_chest (20× used)
83. bee_costume (20× used)
84. country_us (19× used)
85. block (18× used)
86. apple (18× used)
87. ramen (18× used)
88. rabbit (18× used)
89. country_de (17× used)
90. icefox (17× used)
91. bunny_costume (16× used)
92. blue_dinosaur (16× used)
93. curious_bot (15× used)
94. tiger (15× used)
95. scuba_diver (15× used)
96. cow (14× used)
97. bandit (14× used)
98. country_fr (14× used)
99. monkey (14× used)
100. pirate (13× used)
101. boby (12× used)
102. country_pl (12× used)
103. leprechaun (12× used)
104. country_se (11× used)
105. country_il (11× used)
106. firefox (11× used)
107. country_gb (11× used)
108. science_adept (11× used)
109. country_au (11× used)
110. carrot_costume (11× used)
111. burger (10× used)
112. shape (10× used)
113. dinosaur (10× used)
114. country_be (10× used)
115. steampunk (9× used)
116. spy (9× used)
117. country_fi (9× used)
118. mecha (9× used)
119. fairy (8× used)
120. mark (8× used)
121. country_cz (8× used)
122. country_ro (7× used)
123. country_no (7× used)
124. country_it (6× used)
125. banana (6× used)
126. nutcracker (6× used)
127. country_gr (6× used)
128. country_es (6× used)
129. red_cocoa (6× used)
130. burglar (5× used)
131. polar_bear (5× used)
132. hamster (5× used)
133. pig (5× used)
134. fossil (5× used)
135. alice (5× used)
136. country_ca (5× used)
137. unicorn (5× used)
138. green_cocoa (4× used)
139. country_ru (4× used)
140. graffiti (4× used)
141. country_hu (4× used)
142. firefighter (4× used)
143. country_ch (4× used)
144. popcorn (3× used)
145. pineapple (3× used)
146. country_si (3× used)
147. blue_crown (3× used)
148. country_hr (3× used)
149. jailbreak (3× used)
150. cardboard_box (2× used)
151. stinger (1× used)
152. black_crown (1× used)
153. alfie (1× used)
154. yellow_crown (1× used)
155. laurel (1× used)
156. white_crown (1× used)