If you have set your sag correctly and are using full travel (bottoming out) too easily, then you could install one or more spacers to increase bottom out resistance. Note: This product is 3D-printed.
Fox 36 Float Volume Spacer Bottomless Token 10cc in Orange 234-04-736
Fox 38 Float Volume Spacer - Bottomless Token - 234-44-189 - Fork - 803-01-663
3x Fox 34 Float Volume Spacer - Bottomless Token - 234-04-953 - Fork - 803-01-66
Fox 40 Float Volume Spacer - Bottomless Token - 234-04-726 - Fork - 803-01-669
Fox 34 Float Volume Spacer - Bottomless Token - 234-04-953 - Fork - 803-01-667
Fox 36 Rhythm Volume Spacer - Bottomless Token - 234-44-079- Marzocchi Bomber Z1