How do i make this chocolate fence with the rounded tops like in this picture?? Thanks!!

Just guessing, here, but maybe they spread out the chocolate, cut into strips and then used top of a round cutter to do tops? That's the only thing I could come up with.

Just a guess but i would try melting chocolate and spreading it out on a tray with waxed paper on. then take a curved border cutter, use that in a line to get the humps then cut down in lines at the place the bumps are at the lowest point. does that make sense? you could also use chocolate fondant?!

hth