I think we should talk more about Grease Pencils, a.k.a Chinese Markers. They act like usual pencils, but can wtite on plastic, metal, ceramic, and, ofc, paper! And the way they are

Versatile marker writes smoothly and legibly on both porous and nonporous materials such as porcelain, glass, metal and plastic. Moisture-and fade resistant formula. Paper wrapped--just pull string and peel down strip to refresh tip. Erasable with a damp cloth.

Sanford 2060 Peel-Off China Marker White Dozen

Grease Pencil Carmel Industries

The china marker makes beautiful bold strokes on almost any porous or non-porous surface including glass, plastic, film, paper, metal, and rubber.

Grease Pencil

Sharpie Peel-Off China Markers

Grease pencil - Wikipedia

Markers & Grease Pencils

JIAHG 9 Pcs Assorted Colors Peel-Off China Marker

Diamond Peel-Off China Markers/Grease Pencils for

High Quality: The creative crayon pencil set made of premium materials, water proof and fade resistant, eco-friendly and non-toxic, no harm to users,

JIAHG 9 Pcs Assorted Colors Peel-Off China Marker Grease Wax Pencils for Glass, Garments, Cellophane, Fabric, Wood, Metal, Art Crayons Marking Pencils

High Quality: The creative crayon pencil set made of premium materials, water proof and fade resistant, eco-friendly and non-toxic, no harm to users,

JIAHG 9 Pcs Assorted Colors Peel-Off China Marker Grease Wax Pencils for Glass, Garments, Cellophane, Fabric, Wood, Metal, Art Crayons Marking Pencils

Sharpie Peel-Off China Markers

7 Ways to Use Grease Pencils in the Kitchen

General Pencil 1240ABP China Marker Multi Purpose