They might be able to be smushed into a flat rate box or envelope (USPS Priority mail...they have them for free at any post office), for about $5...or into one of the strong white envelopes by weight...it might be cheaper, too...just depends. I have a stamps.com program I use - and if I have the weight of the items, I can tell you the cheapest way to ship or I can even send you a postage paid label to use.