Custom heads in skript guis

[EngineeredBuilds]

I know how to put the head of the player that is opening it into the gui, but how do I put custom heads that will show for anyone?

 

[skDuck]

Use SkBee's NBT compounds or SKull skript addon, find a custom head online, either get the NBT (if you're going to use SkBee) or the skull value (for SKull).

Expression for SkBee:
set {_head} to player head with nbt compound from "NBT"
Expression for SKull:
set {_head} to skull with value "value"

 

[EngineeredBuilds]

Use SkBee's NBT compounds or SKull skript addon, find a custom head online, either get the NBT (if you're going to use SkBee) or the skull value (for SKull).

Expression for SkBee:
set {_head} to player head with nbt compound from "NBT"
Expression for SKull:
set {_head} to skull with value "value"

How do I get the nbt?

 

[skDuck]

How do I get the nbt?

Find the skull you want on custom heads website, for example am going to use minecraft-heads.com
Find:
Minecraft 1.16+ NEW!
Give-Code:
> Very long command.

Copy the command and paste it on a notepad or something, mine is /give @p minecraft:player_head{display:{Name:"{\"text\":\"Crate\"}"},SkullOwner:{Id:[I;-729457928,-1182315314,-1575284776,-589168341],Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMmQ3NTI1N2FmYTE5OTg2NGI5Y2MwZDI5MmU0ZDVmMmE2MGM4NjhiYWEzMTFmNThiOGM3NTY0Njk1ODA0Y2NkNCJ9fX0="}]}}} 1
The NBT is {display:{Name:"{\"text\":\"Crate\"}"},SkullOwner:{Id:[I;-729457928,-1182315314,-1575284776,-589168341],Properties:{textures:[{Value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMmQ3NTI1N2FmYTE5OTg2NGI5Y2MwZDI5MmU0ZDVmMmE2MGM4NjhiYWEzMTFmNThiOGM3NTY0Njk1ODA0Y2NkNCJ9fX0="}]}}}
To use it in a Skript string, double all the quotations (").

 

[NagasonicDev]

Not sure if you still need it, but my Skript addon Skonic has an expression to get a head from just the value.