Cof­fee fil­ters are good at fil­ter­ing cof­fee but they are also per­fect build­ing mate­ri­als for Do-It-Yourself clothes, DIY rugs, DIY blan­kets, DIY para­chutes and of course DIY hand­ker­chiefs. Hav­ing one for a hat is like hav­ing a milk­shake just when you crave it. That’s right. SO AWESOME.