for i=1,8 do
    local Rock = Instance.new("Part", script.Parent)
    Rock.Name="Stone"
    Rock.Size = Vector3.new(2, 1.2, 2)
    Rock.Position = Vector3.new(math.random(script.Parent.Position.X-12,script.Parent.Position.X+12),1.7,math.random(script.Parent.Position.Z-12,script.Parent.Position.Z+12))
    wait(5)
end