I look up a printable design with google. (sorry the site I used doesn't exist any more)

Then I put it on a carton and draw it on the back side.

Then I cut out the design.

after that i draw on the decoration I wanted.

I prefered only the top, but you can go wild on the decoration.

To make the top round I put mine on a rolling pin, but you can put it on anything round.

(in the picture you see the design on the rolling pin.... that because I forgot to make a picture earlier!)

After making the top round, I put the box together. To keep the rop round I put two elastics around it.

and I let it dry.

Then at last I took some wrapping paper and cut an inside for the box.

I made some chocolates with this how-to-do:
http://www.cutoutandkeep.net/projects/skull_crushers

The idea to search on google for a design I read in an other how-to-do:
http://www.cutoutandkeep.net/projects/valentine_s_day_treat