Thank you all! It was fun - and a learning experience! I feel much more comfortable with my machine and with quilting in general. I intend to make more of these as well! (AFTER my runner, of course!)
The fleur-de-lis I cut out of 4 pieces of white material and appliqued on before quilting. I quilted around it on all but one of the mug rugs; on the last one, I quilted it as well, following the design to see what I could do with it (top right).