Can someone help me ?

I've already did the script for it.So basicly the script makes a part appear where I click.Can you tell me how to make that part appear when I'm holding after I clicked ? the local script is in a hopper bin. Here's the script :

Player = game.Players.LocalPlayer
mouse = Player:GetMouse()
n = script.Parent

function onButton1Down(mouse)
	local x = Instance.new("Part", workspace)
	x.Name = "Crystal"
	x.Reflectance = 0.55
	x.BrickColor = BrickColor.new("Alder")
	x.TopSurface = "Smooth"
	x.BottomSurface = "Smooth"
	x.Anchored = true
	x.Size = Vector3.new(5, 30, 5)
	x.Friction = 0.4
	x.Shape = "Block"
	x.Position = mouse.Hit.p
	wait(10)
	x:remove()
	wait(0.1)
end

function onSelected(mouse)
	mouse.Button1Down:connect(function() onButton1Down(mouse) end)
end

n.Selected:connect(onSelected)

Just change your mouse.Button1Down to mouse.Button1Up. This means that the function will fire when the mouse button is released.