Cockades were found in the city of Pionersky, Kaliningrad Oblast (until 1945 was called Neukuhren). Cockades were found in a hiding place in the former barracks of the Luftwaffe.
— 10 USD by Russian Post
— 25-40 USD by courier service EMS
— 30-40 USD by Russian Post
— 40-60 USD (depends on customer's country) by courier service EMS
What is the difference between Russian Post and EMS courier service? Read here - link