First of all, Welcome to all the new Birthday Candy girls. You are going to have so much fun!
Last year, the shipping costed me from $0.80 to over $1.25. Since I packed them the same way, I realy think it depends on my post ladies's mood. (Same lady, same packaging - go figure). This year, I am sening the cadies in regular business envelope. I am packing mine in two overlaping rolls of 25. They are clear wrpped on top of a cardboard. I also include a card. Just stopped by the post office, my post lady said the weight cost $0.70. She recomended adding $0.20 since it is none document inside and it is a bit thick. On the safe side, I am sticking two regular stamps on them. Hope this help.