I know how to make a dev only item but I want to transfer it over to a skin?

I know how to make a dev only item/tool that only the devs can use but how would I make that into a piggy skin that is on the shop but only the developers own and can see is in the game (so pretty much the skin area that and shows the skin says equip or buy) and the skin area is only visible to those selected devs and only they can equip it)? Script for dev only items that I need changed:

game.Players.PlayerAdded:Connect(function(plr)
	plr.CharacterAdded:Connect(function()
		if plr.Name == "jtath120" or "SubTojtath120gaming" then
			for _, v in pairs (game.ServerStorage.DevItems:GetChildren()) do
				local devItems = v:Clone()
				devItems.Parent = plr.Backpack
			end
		end
	end)
end)