I know PJ likes to make boxes so here is another way that I've made little boxes for my creations.
Starting with your favorite tiny box, flatten it out by opening the seam along the inside. Find a pretty, old card that is big enough for the opened box to fit across. Any card stock works, too. This one is for a Christmas present, but any card that is heavy enough stock is good.
Here's the little box, all glued up and ready to use. I did have to trim a little bit on the flap so that it fit inside the front but that's not unusual for craft where you are cutting along drawn lines. The smaller the boxes the smaller the tolerances for nano inch size differences.
I used tacky glue but you can close it with any thing from tape to paper stick. a very thin line of Tacky Glue works the best, though you do have to stand there and hold the join for a short while. Count to 50. hehe
There you go! You have a sweet little box to put some ear rings or a necklace into and give away.