Butterfly clips are back, but it's not the '90s trend you remember. The plastic clip-ins have grown up with their nostalgic wearers. Nowadays, they're mostly either being rocked in conjunction with full curls or as an accessory (like a fascinator or headband). One celebrity hairstylist called it “another throwback-meets-today moment,” proving once again that the '90s revival is endless. (Refinery29)