So now in hardcore you can take off the curse of binding carved pumpkin...
Row 1
1. [repeat] /execute as @a[nbt={equipment:{head:{}}}] at @s rotated ~ 0 if block ^ ^1 ^1 minecraft:dispenser[triggered=true]{Items:[{id:"minecraft:shears"}]} run item replace block ^ ^1 ^1 container.0 from entity @s armor.head
2. [chain] /execute as @a[nbt={equipment:{head:{}}}] at @s rotated ~ 0 if block ^ ^1 ^1 minecraft:dispenser[triggered=true]{Items:[{id:"minecraft:shears"}]} run playsound minecraft:entity.sheep.shear ambient @s ~ ~ ~
3. [chain] /execute as @a[nbt={equipment:{head:{}}}] at @s rotated ~ 0 if block ^ ^1 ^1 minecraft:dispenser[triggered=true]{Items:[{id:"minecraft:shears"}]} run item replace entity @s armor.head with air