Today at school I was complimented on my huge fluorescent yellow-green hair ribbon (from memory, about $6.00 /m from Spotlight) and giant (faux) diamond earrings ($15.00 from Bling), which fully made my day.
I love ribbons and earrings because they make your outfit and make you feel so pretty (plus you can usually get away with wearing them if you have a strict dress code or have to wear a uniform like me).