We have all seen pine cones used in crafts and arts but did you know that pine cones can be home to little critters that you do not want in your home? Line a cookie sheet with aluminum foil. Take your cookie sheet outside and place pine cones in a single layer. You do this outside to avoid any more time the critters have to get into your home. Take inside and put into 200 degree preheated oven and bake for 10 minutes. This will also help eliminate any sap that the pinecones hold. Cool and they are not ready for your crafting. This also will make them slightly more porous so that different glues will bind better with them.