Cut a thick piece of paper. Use scissors, a punch, or electric cutting machine to cut out a base shape.
Decorate. Sometimes I add a little note, frame the image, but with time you could really make it fancy.
Cut slits or holes. For necklaces and bracelets you'll want to cut two slits. For earrings just stab two holes (you can use the earring itself of a sewing needle or straight pin).
Attach jewelry. Slide your jewelry item in and position it how you like.
Tidy the back. Fix the back by folding or rolling any extra length and securing with washing tape.