199 known values for skin with current usage counts:

1. default (22389× used)
2. red (16772× used)
3. green (11242× used)
4. follower (4328× used)
5. clown (1178× used)
6. cool_cap (1142× used)
7. trapper (1119× used)
8. vampire (876× used)
9. lab_apprentice (803× used)
10. daisy (784× used)
11. helmet_banana (554× used)
12. snowman (549× used)
13. og_white (475× used)
14. anniversary (453× used)
15. rural_fella (415× used)
16. party_hat (403× used)
17. gingerbread (306× used)
18. panda (228× used)
19. gift_box (222× used)
20. monk (214× used)
21. pumpkin (213× used)
22. black_dog (197× used)
23. og_purple (185× used)
24. dog (169× used)
25. builder (162× used)
26. anniversary_2 (162× used)
27. edm (157× used)
28. toaster (141× used)
29. demon (136× used)
30. tea_cup (128× used)
31. og_yellow (121× used)
32. cyborg_3 (108× used)
33. og_pink (107× used)
34. bad_cap (91× used)
35. cyborg_1 (90× used)
36. reindeer (89× used)
37. grim_reaper (88× used)
38. green_spikes (85× used)
39. elf (83× used)
40. detective (75× used)
41. king (70× used)
42. evil_bot (69× used)
43. wizard (65× used)
44. orca (63× used)
45. mad_scientist (63× used)
46. cubix (62× used)
47. narwhal (61× used)
48. joker (60× used)
49. grey_cat (60× used)
50. eliminated (57× used)
51. headset (54× used)
52. sushi (54× used)
53. yeti (52× used)
54. white_demon (51× used)
55. rplace (49× used)
56. peach (49× used)
57. spikes (48× used)
58. mummy (48× used)
59. cat (48× used)
60. parrot (46× used)
61. shades (46× used)
62. security_bot (45× used)
63. anniversary_3 (44× used)
64. angel (40× used)
65. ninja (40× used)
66. murica (40× used)
67. fries (40× used)
68. siren (39× used)
69. lunar_dragon (38× used)
70. icefox (38× used)
71. bow_tie (36× used)
72. wolf (33× used)
73. alien (33× used)
74. astronaut (31× used)
75. cyborg_2 (31× used)
76. country_nl (30× used)
77. top_hat (30× used)
78. devil (28× used)
79. ghost (28× used)
80. whale (26× used)
81. ramen (25× used)
82. festive_lights (22× used)
83. shark_attack (22× used)
84. treasure_chest (20× used)
85. rabbit (19× used)
86. apple (19× used)
87. monkey (19× used)
88. science_adept (19× used)
89. country_us (18× used)
90. blue_dinosaur (18× used)
91. bee_costume (18× used)
92. bandit (18× used)
93. tiger (18× used)
94. block (17× used)
95. scuba_diver (17× used)
96. bunny_costume (16× used)
97. country_de (16× used)
98. firefox (16× used)
99. cow (15× used)
100. banana (15× used)
101. curious_bot (15× used)
102. country_fr (14× used)
103. mecha (14× used)
104. burger (14× used)
105. polar_bear (13× used)
106. pirate (13× used)
107. fairy (12× used)
108. boby (12× used)
109. country_se (12× used)
110. dinosaur (12× used)
111. shape (12× used)
112. leprechaun (11× used)
113. country_pl (11× used)
114. country_il (11× used)
115. pig (11× used)
116. country_gb (11× used)
117. country_au (11× used)
118. carrot_costume (11× used)
119. burglar (11× used)
120. unicorn (10× used)
121. steampunk (10× used)
122. spy (10× used)
123. country_fi (9× used)
124. country_be (8× used)
125. fossil (8× used)
126. firefighter (7× used)
127. country_ro (7× used)
128. country_no (7× used)
129. pineapple (7× used)
130. graffiti (7× used)
131. country_cz (7× used)
132. red_cocoa (6× used)
133. country_it (6× used)
134. country_gr (6× used)
135. nutcracker (6× used)
136. cardboard_box (6× used)
137. mark (6× used)
138. jailbreak (5× used)
139. hamster (5× used)
140. country_hu (5× used)
141. country_es (5× used)
142. cowboy (4× used)
143. buffalo (4× used)
144. country_ru (4× used)
145. green_cocoa (4× used)
146. country_ch (4× used)
147. country_ca (4× used)
148. country_si (3× used)
149. popcorn (3× used)
150. country_hr (3× used)
151. stinger (3× used)
152. ewc26_frostpike (2× used)
153. ewc26_durr (2× used)
154. ewc26_chrome_hearts (2× used)
155. ewc26_born_free (2× used)
156. ewc26_the_saints (2× used)
157. ewc26_bob (2× used)
158. ewc26_bdg (2× used)
159. ewc26_the_green_gang (2× used)
160. ewc26_team_vanguard (2× used)
161. ewc26_bananillow (2× used)
162. ewc26_svenk_ok (2× used)
163. ewc26_anis_don_demina (2× used)
164. ewc26_spookydragon (2× used)
165. ewc26_skill_issue (2× used)
166. ewc26_real_slovenia_team_w (2× used)
167. ewc26_4ua2 (2× used)
168. ewc26_42ktrophygang (2× used)
169. ewc26_purple_swag (2× used)
170. ewc26_psw (2× used)
171. ewc26_ne1 (2× used)
172. ewc26_nbd_never_what (2× used)
173. ewc26_narrow (2× used)
174. ewc26_meowmeloen (2× used)
175. ewc26_late_but_great (2× used)
176. ewc26_krabe (2× used)
177. ewc26_icedrifters_de (2× used)
178. ewc26_faxxianz (1× used)
179. ewc26_drip_too_hard (1× used)
180. ewc26_titans_of_asgard (1× used)
181. ewc26_tiagoonlix (1× used)
182. ewc26_the_maroonders (1× used)
183. ewc26_batman_underwear (1× used)
184. black_crown (1× used)
185. ewc26_strike (1× used)
186. ewc26_andromeda (1× used)
187. ewc26_ambiem (1× used)
188. ewc26_52emp (1× used)
189. ewc26_questionmark (1× used)
190. ewc26_pritty_ep1c (1× used)
191. ewc26_olise (1× used)
192. ewc26_no_clue (1× used)
193. alice (1× used)
194. alfie (1× used)
195. ewc26_im_bad (1× used)
196. ewc26_hyperdrive (1× used)
197. ewc26_haha_hmm (1× used)
198. ewc26_glitch_frogs (1× used)
199. ewc26_fzbe (1× used)