Have a look this Secondhand Market SVG icons below and see how some true ideas should really look like. And what's more, you can get it absolutely free.
You have the download buttons bellow and can choose between two popular extensions, SVG or PNG formats. Also, before downloading the Secondhand Market SVG icon, you can try the colors from the top of the icon, and test it, if the color fit with your ideas. If not, just refresh the page and you'll have new posibillities