When it comes to versatility, you just can’t beat the bobby pin. It’s beyond easy to use — most of us just pop them in instinctually to get our hair out of our faces, no mirror or thought required.

Add Yahoo as a preferred source to see more of our stories on Google. Anyone who’s ever put their hair up in a high ponytail or slicked-back bun knows the struggle with erratic lumps and bumps. You ...