Making bottle cap images for use in bottle cap craft projects such as bottle cap magnets is a project that both children and adults can appreciate. Bottle cap images can be gathered from a wide variety of sources. Locating bottle cap images encourages children, students and adults to recycle and reuse common items such as magazine, catalogue, postcard and greeting card images. This is a project an entire classroom of students can make for holiday gifts, or while studying magnets and recycling units.
Locate an image that you like. Look in magazines, catalogues, old calendars, postcards, greeting cards, junk mail or stickers. Use your own photographs by resizing them according to your photo software, or use the preview photo cards many photo developing companies include with your developed photo orders. Download and save images from websites on the Internet with your computer and print them with a computer printer in colour or in black and white.
Place a piece of tissue paper inside a clean, dry bottle cap. Press the tissue paper into the side ridges of the bottle cap, and smooth the paper over the bottom of the bottle cap.
Use a pen to trace around the inside of the bottle cap. Remove the paper and cut out the traced circle.
Place the tissue paper pattern (circle) on top of your image. Trace around the pattern. Cut out the image.
Rub a school glue stick lightly on the backside of your image. Press the glue onto the inside bottom of the bottle cap. The back of the bottle cap won't be seen, and the brand and words will be mostly covered with a magnet.
Mix the clear casting resin according to the instructions for the particular brand of resin you're using. Pour the clear casting resin into the bottle cap over the paper image until the bottle cap is full. Allow the resin to dry for 24 to 48 hours, or until it's completely set.
Sand the back centre of the metal bottle cap lightly with a fine-grit sandpaper to create texture for ease in gluing the magnet to the metal. Sand in a back-and-forth movement, stopping when you can rub your finger over the back of the bottle cap and feel roughness.
Place a pea-sized drop of super-strength glue onto the back of the magnet and adhere it to the back of the metal bottle cap. Some good brands of glue to use for gluing metal to a magnet include E6000, Superglue, Krazy Glue or Gorilla Glue. Allow the glue to completely dry.
Use caution when gluing with super-strength glues. These glues will adhere flesh to your project and can result in injuries.