Duct Tape flower pens are a cute and easy thing to make! You will need duct tape, an exacto knife, a pen, and a cutting mat. Here's how you make it. First you need to cut eight inches of tape. Make for of those. After that you cut up each strip into four equal parts ( cut every two inches ). Once you do that fold one corner of one square in but make sure there is still sticky showing in the shape of an L. Now fold the bottom corner up to make one of the petals there should be sticky showing.