This little no glue or glue it if you prefer box is 2 inches long,1 inch high/deep and 1.25 inches wide.
I made it to fit these Maoam treats I bought, but you can fit anything inside that you have and is not bigger of course ;-)
For the box you need a piece of cardstock 5,5"x6"
Start to score on the 6" side at: 1", 2"4" and 5".
Rotate the paper 90 degrees and score at: 1".2,25" .3,25" 4,50"
Fold and burnish all the score lines, remove bits as indicated in pattern and glue or not the flap before you fold it over. I think it looks neater if glued, but if you're pressed for time and need to make many you can skip this.
I have rounded the corners on the lid, but that's also not neccessary if you're in a hurry.