Cobweb painting

Painting on canvas made from spiderweb

Cobweb painting, sometimes known as gossamer painting, is the delicate process of painting on canvases made from caterpillar and spider webs that have been collected, layered, cleaned, and framed. Fewer than 100 cobweb paintings are known to exist, many of which are housed in private collections.

This keyword could refer to multiple things. Here are some suggestions: