40 known values for glider with current usage counts:

1. default (23553× used)
2. purple (22305× used)
3. yellow (7566× used)
4. umbrella (5204× used)
5. pumpkin (4943× used)
6. bicolor (1381× used)
7. bat_wings (1092× used)
8. cat_ears (948× used)
9. festive_drift (569× used)
10. plane (475× used)
11. bicolor2 (361× used)
12. magic_carpet (339× used)
13. jet (300× used)
14. ufo (275× used)
15. leaf (208× used)
16. jetpack (146× used)
17. santa_sleigh (140× used)
18. magic_cloud (126× used)
19. flower (124× used)
20. snow_glider (115× used)
21. coffin (92× used)
22. pirate_sail (84× used)
23. icy_umbrella (82× used)
24. surfboard (81× used)
25. kite (81× used)
26. steampunk_wings (78× used)
27. parachute (69× used)
28. carrot (58× used)
29. black_wings (52× used)
30. black_and_white (47× used)
31. lunar_lantern (44× used)
32. bandit_glider (39× used)
33. rocket (36× used)
34. jurassic_wings (35× used)
35. gingerbread_wings (32× used)
36. heliclover (18× used)
37. festive_tree (17× used)
38. summer_glider (12× used)
39. stinger (10× used)
40. sail (10× used)