you should be able to go to USPS.com and there should be a place on there to see how much it would cost from one zip to the other tell me your zip code and I will check it out.....do you know about how much they weigh?
ok so i just checked and depending on the actual weight of them, they should cost around 3.32 up to no more than 5.54 depending on the exact weight. It might be better for you to just start setting a shipping amount instead of trying to figure out a shipping amount everytime someone else wants to know how much shipping is, like me, I can tell with my baby clothes when I send them I know I can send them for about 2.50-3.75 depending how much is in there, so I just try to charge about 3.00 or 3.50 and that will cover the price, if it goes over a little, I just cover it, if its under, i just let them know it is covering the shipping and your supplies, like that envelope or whatever you use, just a friendly piece of advice. Good Luck with your auctions!