They come in different shapes, themes and designs that can easily represent your style.The ear cuff looks like a bobby pin attached to your ear.
Chain Ear Cuff From An Eye Pin Tutorial:

Image: youtube
DIY Crystal Ear Cuff:

Image: youtube
Textured Copper Ear Cuff:

Image: blog.rings-thing
Glam Ear Cuffs Pronto:

Image: brit.co
Dazzling Ear Cuff:

Image: mjtrim
Wire Wrapped Earring &Red Glass Beads Ear Cuff:

Image: buyjewelrybeads.wordpress
Pretty Beads Fairy Ear Cuff:

Image: youtube
Fun With Wire – Ear Cuff

Image: youtube
Feather Ear-cuff:

Image: lakukita.wordpress
Simple Wire Ear Cuff:

Image: e-eliseetc
Rhinestones Ear Cuff:

Image: ourcollectivemuse
Simple Ear Cuff Tutorial:

Image: frostwinter222.wordpress
Butterfly Wing Ear Cuff:

Image: youtube
DIY Chained Ear Cuff:

Image: diycloset.wordpress
DIY Ear Cuff – Quick & Easy

Image: ashleymanfred
DIY Paper Clip Earring:

Image: youtube
Rhinestone Ear Cuff (From An Old Necklace)

Image: pearlsandscissors
Chain Link Ear Cuff:

Image: alwaysrooney
Crystal Ear Cuff: DIY

Image: diynamicstyle
DIY Ear Cuff Tutorial:

Image: byisnata
Navette Rhinestones Ear Cuff:

Image: honestlywtf
Silver Ear Cuff – DIY

Image: paperraindrops.blogspot