All over the country.... our red post boxes ( mailboxes)... are adorned with crocheted figure made by volunteers..Some areas have created them for charity but most are done just to try and cheer people up in these trying times.
Post box toppers also come under the umbrella of yarnbombing, which is the term for decorating something with knitted or crocheted wool – including bollards, trees, bicycle racks, benches, and fences. Some think of it as street art with yarn