Get sculpted arms (fast!) with one easy move

Workout moves for sculpted arms
Workout moves for sculpted arms

I'm trying to find ways of incorporating arm workouts that I can try to do anywhere without weights or a gym and I'm usually a fan of using my own resistance to get stronger. I'm not great at pushups yet, but using a stair as extra elevation makes it a little easier to start building strength and I can work towards full pushups eventually.