heres my script (its on the serverside)

local MaterialVal = game.ReplicatedStorage.MaterialVal
game.ReplicatedStorage.BuildEvent.OnServerEvent:Connect(function(player, MouseEvent)
	local NewPart = Instance.new("Part", workspace)
	local PlayerVal = Instance.new("ObjectValue")
	NewPart.Size = Vector3.new(5,5,5)
	NewPart.CFrame = MouseEvent
	NewPart.Anchored = true
	NewPart.Orientation = Vector3.new(90, 90, 90)
	PlayerVal.Value = player
	PlayerVal.Parent = NewPart
	NewPart.Name = "Block"
	PlayerVal.Name = "PlayerVal"
	if MaterialVal.Value == "SmoothPlastic" then
		NewPart.Material = Enum.Material.SmoothPlastic
	elseif MaterialVal.Value == "Neon" then
		NewPart.Material = Enum.Material.Neon
	elseif MaterialVal.Value == "Brick" then
		NewPart.Material = Enum.Material.Brick
	end
end)
Anonymous