Vintage-look yardage can be substituted for the tablecloth and will be just as appealing. Add fringe, lace or rick rack to finish the hem.
Other embroidery patterns can be used for the pocket, or fussy cut a print motif to use instead.
Once you have all the parts, the apron itself is easy to stitch together. The designer, Kerri of Lovely Little Handmades, provides a great tutorial.