MouseIcon for the Sword Script

Mouse_Icon = "rbxasset://textures/GunCursor.png"
Reloading_Icon = "rbxasset://textures/GunWaitCursor.png"

Tool = script.Parent

Mouse = nil

function UpdateIcon()
    if Mouse then
        Mouse.Icon = Tool.Enabled and Mouse_Icon or Reloading_Icon
    end
end

function OnEquipped(ToolMouse)
    Mouse = ToolMouse
    UpdateIcon()
end

function OnChanged(Property)
    if Property == "Enabled" then
        UpdateIcon()
    end
end

Tool.Equipped:Connect(OnEquipped)
Tool.Changed:Connect(OnChanged)