42 known values for glider with current usage counts:

1. default (23532× used)
2. purple (22303× used)
3. yellow (7561× used)
4. umbrella (5228× used)
5. pumpkin (4951× used)
6. bicolor (1383× used)
7. bat_wings (1097× used)
8. cat_ears (947× used)
9. festive_drift (568× used)
10. plane (482× used)
11. bicolor2 (356× used)
12. magic_carpet (343× used)
13. jet (300× used)
14. ufo (275× used)
15. leaf (208× used)
16. jetpack (146× used)
17. santa_sleigh (140× used)
18. flower (127× used)
19. magic_cloud (123× used)
20. snow_glider (114× used)
21. coffin (94× used)
22. icy_umbrella (82× used)
23. kite (81× used)
24. pirate_sail (81× used)
25. surfboard (80× used)
26. steampunk_wings (78× used)
27. parachute (70× used)
28. black_wings (61× used)
29. carrot (60× used)
30. black_and_white (52× used)
31. lunar_lantern (44× used)
32. bandit_glider (39× used)
33. rocket (36× used)
34. jurassic_wings (34× used)
35. gingerbread_wings (32× used)
36. heliclover (19× used)
37. festive_tree (17× used)
38. summer_glider (12× used)
39. bat_glider (10× used)
40. stinger (8× used)
41. sail (7× used)
42. spiderweb_glider (6× used)