3D Model: A Primitive Survival Cloth Water Filter Made Only From Natural Materials. A Hollow Bamboo Tube Or Carved Wooden Funnel, About Forearm Length, Tied Together With Vines Or Twine. The Wide Top Is Covered With A Piece Of Rough, Stained Cloth Or Animal Hide, Edges Frayed And Secured With Plant Fibers. Inside The Funnel, Simplified Layers Of Natural Materials Are Visible: Coarse Sand, Crushed Charcoal, And Small River Pebbles. The Bottom End Narrows Where Clean Water Drips Out. The Object Should Look Handmade, Rugged, And Functional, Not Modern Or Factory-made. Use Natural Textures: Rough Wood Or Bamboo, Fibrous Vines, Grainy Sand, Black Charcoal, Gray Stones, And Worn Cloth. Low-to-mid Poly, Clear Silhouette, Stylized But Realistic Enough For A Survival Crafting Sandbox Game.