You will need:
-Yellow paint
-Black, blue and red nail polish or permanent markers
-One medium or big paint brush
-String
-A hot glue gun \\
-Hot glue sticks
Note:
Though the picture shows a tack, I revised my plan by using
a hot glue gun instead.
2. Using either nail-polish, sharpie or another permanent marker, draw the faces after the glue has dried.
3. Now heat up your hot glue gun. When it's ready, glue two globs above the emoji's face on the side of the bottle cap, leaving space between them.
4. Connect the globs with more hot glue, then flip it upside-down in the air.
5. String yarn through the loop of hot glue.
6. Knot it, making sure it will fit over your head
7. Cut the extra yarn, then you're done! Enjoy!