I got the idea to make these clay pens from YouTube video tutorials. I used bic round stick pens (apparently they won't melt like other pens). Remove the ink cartridge from the tip of the pen before baking! The ice cream pens baked for 40 min. and the regular cane covered pens baked for 15 min. At 275 degrees. I won't give detailed instructions here since others have already posted great videos that will be easier to follow. The kids had so much fun with their ice cream "flavors". We used colored glass beads for the sprinkles. And when the ink runs out they can just replace them with another ink cartridge.