i remember one time back in high school, people used to pierce their finger nails.... what the fuck is that?! Anyhow, who cares about trendiness... if it makes you happy, then you should do it... and if anyone says anything about it being trendy, just kick em in the junk.
They are trendy, but you shouldn't let that stop you.
They're also cute as hell and if you lived your life avoiding what was trendy, you'd grow miserable quickly. I mean come on, you listen to Radiohead.