var symbol = d3.symbol();

var symbol = d3.symbol()
        .type(function () {return d3.symbols[~~(Math.random()*d3.symbols.length)];})
        .size(function (d, i) {return ~~(Math.random()*i);})

d3.select("svg").selectAll("path")
        .data(data).enter().append("path")
        .attr("transform",function (d) {
            return "translate("+Math.random() * 600+100+","+Math.random() * 400+100+")";})
        .attr("d",symbol)
        .attr("stroke",function(d,i){return color(i);})
        .attr("stroke-width",2)
        .attr("fill","none");