Is there some kind of material that burrs won't stick to?

Yes, certain materials are less prone to burr adhesion due to their smooth surfaces or non-stick properties. Teflon (PTFE) and other fluoropolymers are commonly used for this purpose, as they create a low-friction surface that resists sticking. Additionally, materials like stainless steel or certain coatings can also minimize burr accumulation, making them easier to clean.