Half-marathon finisher's medal.
I have nothing against the "hobby jogger." As surely somebody will soon point out, unless we're making a living off our running, we're all hobby joggers. How folks gear up or outfit themselves is their own business, even if I sometimes think they look ridiculous.
But the trend in recent years to hand out medals to everybody for simply completing a half annoys me, and the folks wearing them around for days afterwards compounds it.
The hobby-triathlete's MDot tatoo ranks right up there too.