38 known values for glider with current usage counts:

1. default (23222× used)
2. purple (22131× used)
3. yellow (7562× used)
4. pumpkin (4923× used)
5. umbrella (4428× used)
6. bat_wings (1089× used)
7. bicolor (942× used)
8. cat_ears (914× used)
9. festive_drift (569× used)
10. plane (429× used)
11. bicolor2 (361× used)
12. jet (268× used)
13. magic_carpet (267× used)
14. leaf (212× used)
15. ufo (211× used)
16. jetpack (143× used)
17. santa_sleigh (138× used)
18. magic_cloud (125× used)
19. flower (114× used)
20. snow_glider (103× used)
21. coffin (89× used)
22. icy_umbrella (84× used)
23. pirate_sail (81× used)
24. surfboard (75× used)
25. steampunk_wings (75× used)
26. kite (68× used)
27. carrot (60× used)
28. parachute (58× used)
29. black_wings (54× used)
30. lunar_lantern (44× used)
31. bandit_glider (38× used)
32. gingerbread_wings (33× used)
33. rocket (32× used)
34. black_and_white (32× used)
35. jurassic_wings (30× used)
36. heliclover (20× used)
37. festive_tree (18× used)
38. stinger (11× used)