Media mail only works if it's a book. Even magazines do not qualify. :( The priority mail envelopes can be stuffed. I've seen people get six+ yard in one! And if you print the postage online it's less expensive and you get delivery confirmation free.
I'd love to send some fun scraps to someone. First one to send me their address gets some wild scraps. I wish I could send everyone a batch, but until I win the lottery...