The ones under $1 aren't sent with ePacket, but under a different program that doesn't have tracking. Do any of the items fit in a regular envelope? Is it poss

The ones under $1 aren't sent with ePacket, but under a different program that doesn't have tracking. Do any of the items fit in a regular envelope? Is it possible to ship for the price of a stamp? If not, most likely you can ship with flats for $1-1.50 range.