It's a food cover, useful when picnicking to help protect your food!
Lately, we're leaving our windows open during the day, and eating outside almost every night, and the bugs are dining too. Experience tells us that in a few weeks, the flies and mosquitoes will be more full than we will. So we're checking out food covers that will help keep bugs off of our food when we're dining alfresco.
The embroidered one above is from Anthropologie, for $18
Here are a few more cute and practical ones that we've scavenged from around the Net: