Last night, I discovered a web site where you can make customized band/concert flyers for free using templates. It's pretty slick and I probably should have looked for such a site sooner than now. But I didn't.
In any case, it only takes a few minutes to customize a flyer on the site and download it as a .jpg file. It's totally free if you allow their web site watermark in the lower left corner of the flyer.
The thumbnail there on the right is one I threw together for my January 8, 2016 solo acoustic show at Bos Meadery.