38 known values for glider with current usage counts:

1. default (23322× used)
2. purple (22206× used)
3. yellow (7566× used)
4. pumpkin (4919× used)
5. umbrella (4710× used)
6. bat_wings (1089× used)
7. bicolor (1086× used)
8. cat_ears (932× used)
9. festive_drift (567× used)
10. plane (441× used)
11. bicolor2 (360× used)
12. magic_carpet (288× used)
13. jet (280× used)
14. ufo (231× used)
15. leaf (211× used)
16. jetpack (144× used)
17. santa_sleigh (139× used)
18. magic_cloud (126× used)
19. flower (120× used)
20. snow_glider (109× used)
21. coffin (89× used)
22. icy_umbrella (84× used)
23. pirate_sail (79× used)
24. surfboard (75× used)
25. steampunk_wings (74× used)
26. kite (70× used)
27. parachute (62× used)
28. carrot (60× used)
29. black_wings (49× used)
30. lunar_lantern (44× used)
31. bandit_glider (39× used)
32. black_and_white (39× used)
33. rocket (37× used)
34. jurassic_wings (35× used)
35. gingerbread_wings (32× used)
36. heliclover (18× used)
37. festive_tree (17× used)
38. stinger (10× used)