You can purchase individual boxes, folios, and what-have-yous from
Wooden Nickel. Or get them in sets of 10-12, basically smaller quantities if you are just getting started. I wrap our prints in colorful tissue and put them in the black box. People said they feel like its Christmas when they open up the box. I also leave a few biz cards in the bottom of the box - it tends to get passed around.
You can also purchase pretty bags and foil stickers and that kind of thing from lots of places online. We used Bags & Bows when we 1st started. Lots of places offer similar products - I just liked their CS dept. They were great.
Can't wait to see the images!