■ Working time: About 10 minutes
■ Material cost: About $2
· Empty boxes such as chocolate boxes
· Wide masking tape
· 3 clips
· Utility knife
① Take the lid off the box, cut into corners of one side and fold side and close with masking tape. Do the same for the lid.
② Close the box like it originally was and paste together with masking tape.
③ Put on clip to make the partition and it's done!