How to Make a Fake Belly Button Piercing
To make a fake belly button piercing, all you need is a colored bead or 2 and body glue. Look for a silver- or gold-colored bead if you want your piercing to look like metal. To stick it to your belly button, apply a small amount of body, nail, or eyelash glue to the back and press the bead into your belly button. It'll take a few minutes for the glue to dry. You can also stick a smaller bead or gemstone an inch above your belly button to create a double piercing. Alternatively, cut the top off a dangling earring and glue this to your belly button for a dangling piercing.
Find a silver- or gold-colored bead. The bead can be plastic or metal, but it should be small enough to fit inside your belly button. You can buy inexpensive beaded necklaces at discount stores for as little as $1 and cut a single bead off with scissors. You can also use wire cutters and snip the post from the back of a bead earring. Find a small stick-on rhinestone. The small jewels have adhesive applied to the back so it will stay on your skin. You can also snip off the post of a jeweled earring stud (as long as it has a flat back) with wire cutters. The size of the rhinestone is up to you, but your fake piercing will look more realistic if the jewel is smaller than the bead you chose. Attach the jeweled piece about and inch above your belly button. If you're using a stick-on piece, you don't need to add adhesive. If you made your own piece of jewelry, use spirit gum, nail glue, eyelash glue or body glue so the jewel adheres to your skin. Glue the bead inside your navel. Since the back of the bead won't be visible, you can get a little creative with your adhesive. Try to place the bead in the upper part of your belly button, so that it looks like it's attached to the jewelry above. Let your adhesive dry. Don't jostle or move the pieces for a few minutes while the adhesive dries. It helps to lie down while the glue dries. Find a lightweight dangling earring. A small hoop or a lightweight chain are good options. You can even create your own belly-button jewelry designs using simple materials such as straight pins, beads, wire cutters and pliers. Remove the post from existing jewelry by snipping it with wire cutters. If the earring has a hook, either snip it with wire cutters or use needle-nosed pliers to open that link or loop attached to the hook and pull it apart from the rest of the earring. Create your own beaded jewelry by sliding beads onto a pin. Using a straight pin with a beaded head, slide small beads onto the pin in a custom pattern. Slide the beads over the pin in whatever arrangement you like. Remember, the pin head will be the bottom of the jewelry, so the beads should be small enough they don't slide over it. Don't make the pin arrangement longer than what you'd like dangling from your navel. Using needle-nosed pliers, bend the remainder of the pin so it forms a 90-degree angle. Clip the sharp end of the pin so that only about 1 centimeter of bare wire remains. Bend the remaining wire into a small loop using needle-nosed pliers. The loop will be the top of the belly-button ring. Attach the earring to the top side of your navel. The best adhesives to use are spirit gum, nail glue, eyelash glue or body glue. You will find it helpful to add glue to both the jewelry and your skin, then stick them together. Place a rhinestone sticker above the earring. To give the fake belly-button piercing a more realistic appearance, add a jewel about an inch above your navel. If you don't have a sticker, you can use wire cutters to snip off the post from a rhinestone earring (as long as it has a flat back) and glue the jewel to your skin. While the size of the rhinestone is based on your personal preference, choosing a jewel the same size or smaller than the pin head you chose will look most realistic. Allow the adhesive to dry. Be sure you don't move around or touch the pieces for several minutes. It's also helpful to lay down flat while the glue dries. Create custom fake belly-button jewelry just like you would create custom earrings. There are a variety of ways you can customize beads or create your own dangling belly-button jewelry. Customize your bead by painting it with nail polish or covering it in glitter. Cover the bead with nail polish or a thin layer of white craft glue, then roll the bead in glitter. Let it dry completely before you attach it to your body. Create dangling earrings with a variety of materials. Instead of sliding beads onto a straight pin, stick the pin through all sorts of materials. You can decorate a tiny Styrofoam craft ball with paint, nail polish or glitter or roll a small ball of aluminum foil and decorate it in the same way. You can even stick the pin through a small fuzzy ball. Follow the instructions to make any earring design. Just be sure and stop before adding a post or hook and instead attach the jewelry to your belly button using the instructions above. 
Find a silver- or gold-colored bead. Find a small stick-on rhinestone. Attach the jeweled piece about and inch above your belly button. Glue the bead inside your navel. Let your adhesive dry. Find a lightweight dangling earring. Remove the post from existing jewelry by snipping it with wire cutters. Create your own beaded jewelry by sliding beads onto a pin. Attach the earring to the top side of your navel. Place a rhinestone sticker above the earring. Allow the adhesive to dry. Create custom fake belly-button jewelry just like you would create custom earrings. Customize your bead by painting it with nail polish or covering it in glitter. Create dangling earrings with a variety of materials. Follow the instructions to make any earring design. 