38 known values for glider with current usage counts:

1. default (23328× used)
2. purple (22204× used)
3. yellow (7560× used)
4. pumpkin (4921× used)
5. umbrella (4669× used)
6. bat_wings (1091× used)
7. bicolor (1081× used)
8. cat_ears (930× used)
9. festive_drift (569× used)
10. plane (441× used)
11. bicolor2 (359× used)
12. magic_carpet (289× used)
13. jet (277× used)
14. ufo (226× used)
15. leaf (210× used)
16. jetpack (142× used)
17. santa_sleigh (139× used)
18. magic_cloud (128× used)
19. flower (117× used)
20. snow_glider (107× used)
21. coffin (89× used)
22. icy_umbrella (83× used)
23. steampunk_wings (79× used)
24. pirate_sail (79× used)
25. surfboard (75× used)
26. kite (71× used)
27. parachute (62× used)
28. carrot (60× used)
29. black_wings (48× used)
30. lunar_lantern (44× used)
31. bandit_glider (39× used)
32. black_and_white (39× used)
33. jurassic_wings (37× used)
34. rocket (37× used)
35. gingerbread_wings (32× used)
36. heliclover (19× used)
37. festive_tree (17× used)
38. stinger (11× used)