local plr = game.Players.LocalPlayer
local char = plr.Character
local ra = char:findFirstChild'Right Arm'
local colors = {'Bright red','Neon orange','Really red'}
local part = Instance.new('Part',char)
part.CanCollide = false
part.FormFactor = 3
part.Size = Vector3.new(1.6,1.5,1.4)
part.Transparency = .5
part.TopSurface,part.BottomSurface=0,0
local w = Instance.new('Weld',part)
w.Part0 = part
w.Part1 = ra
w.C1 = CFrame.new(0,-1,0)

workspace.Chxp.Torso["Right Shoulder"].C0 = workspace.Chxp.Torso["Right Shoulder"].C0 * CFrame.Angles(0,-.5,math.rad(90)) --Math.rad you should know this from yesterday
workspace.Chxp.Torso["Left Shoulder"].C0 = workspace.Chxp.Torso["Left Shoulder"].C0 * CFrame.Angles(0,0,-math.rad(90)) --You need to put negative

while true do
	part.BrickColor = BrickColor.new(colors[math.random(1,#colors)])
	w.C0 = w.C0 * CFrame.Angles(math.rad(math.random(1,360)),math.rad(math.random(1,360)),math.rad(math.random(1,360)))
	wait(.05)
end