Crocheted doilies are another disappearing art. Made from thread, yarn or a combination of these. Patterns and color vary widely and depend on the skill of the person crocheting. I continue to use them in my home on tables, under items, and a large one on the back of my couch. The largest one I have is a 3 colored floral pattern tablecloth that resides on my "formal" dinning table.
This is a popular Valentine's Crochet Pattern. This heart filet doily would be great on a corner shelf or in a framed wall hanging. You could even make a table mat using worsted weight yarn and a size h or 5mm hook. The stitch chart is on the bottom of the page.