How Can I Create an Arrow Under The Player's Feet?

I've been trying to make an arrow that points towards where a certain item is and sits on the ground. However, the way I'm using doesn't work for 2 reasons:

1. It doesn't rotate
2. It seems to be uneven as it's parented to the LowerTorso.

Here's the code I wrote:

local SS = game:GetService("ServerStorage")
local QA = SS.QuestArrow

game.Players.PlayerAdded:connect(function(player)
	local qa2 = QA:Clone()
	repeat wait() until player.Character ~= nil
	qa2.Parent = player.Character
	qa2.Rotation = player.Character.LowerTorso.Rotation
	local weld = Instance.new("Weld", qa2)
    weld.Part0 = qa2 
    weld.Part1 = player.Character["LowerTorso"] 
    weld.C0 = CFrame.new(0, 1.75, 0)
end)

I'm still relatively new to using CFrame for anything other than teleporting and very new to welding.

Any pointers or recommendations would be much appreciated! (please note i'm not asking for someone to make the script or me, merely point me in the right direction or help me w/ the code i've already written)