Husks Drop Sand
This fully configurable mod adds a chance for desert zombies to drop sand upon death. Since these mobs spawn in deserts, it's logical to assume that sand could get stuck in their clothing and bodies. A simple but useful change enables balanced sand farms in the overworld without destroying entire desert biomes.

Configuration
You can configure this mod directly in-game or edit the JSON file config/huskssand.json in your profile folder. If you're using Fabric and want to adjust configuration values in-game, you'll need to install Mod Menu. Please note that any changes will require restarting Minecraft to take effect.
min_rolls - sets the minimum number of sand blocks that can be dropped max_rolls - sets the maximum number of sand blocks that can be dropped