My tool clones a GUI once equipped, but it suddenly still work once I unequipped it!?

So, I was working on the magic game "Elemental Magic", I was planning a magic called Sand Magic to have full spell moveset in a GUI, then it works. Suddenly this is the hardest part, cloning it to the PlayerGui.

local UIS = game:GetService("UserInputService")
local s = true
local player = game.Players.LocalPlayer or game.Players.PlayerAdded:Wait()
local gui = player:WaitForChild("PlayerGui")
script.Parent.Equipped:Connect(function()
	local sand = script.Parent.Handle:WaitForChild("Sand")
	sand.Parent = gui
	sand.Enabled = true
	script.Parent.Unequipped:Connect(function()
		sand.Parent = script.Parent.Handle
	end)
end)

I tried the Destroy method, instead it errors the GUI by the spells not making it do it.

But you have to reuse "sand" so it doesn't make sense if you destroy it forever. Prefer to use the:

local Debris = game:GetService("Debris")
local player = game.Players.LocalPlayer or game.Players.PlayerAdded:Wait()
local gui = player:WaitForChild("PlayerGui")
local sand = script.Parent.Handle:WaitForChild("Sand"):Clone
local sand.Name = "Sand"
sand.Parent = gui

script.Parent.Unequipped:Connect(function()
        Debris:AddItem(sand, 5)
end)