do it all the time and love it...i serpentine some pcs, straight along edge on others, zigzag like lightening on some, and then 'watermark' over the whole pc occasionally... add stem lines, floral details, round 'cheek' marks (that kind of back and forth curved stitching that makes things look rounded?, sliced apples and pears are easy and then you can add 'seeds' and stems and a leaf or two with just machine stitching...put a cloud on with little close edge stitch and then put a lightening bolt in stitching right under it... there is no end to what you can think of as you work...new ideas will just suggest themselves to you...