Three black and white logo concepts for 'Viikon Putki' plumbing company. Concept A is a V-shaped pipe, B is crossed pipe and wrench, C is a blocky V.

Create a black and white rock-inspired logo set for a Finnish plumbing company named “Viikon Putki”. Show three different logo concepts side by side, labeled A, B, and C. Concept A: Industrial rock style. A bold metal pipe shaped like the letter V or a lightning bolt. Heavy, condensed sans-serif typography, all caps “VIIKON PUTKI”. Thick lines, strong contrast, professional and tough. Concept B: Hardcore industrial emblem. Crossed pipe and wrench like a rock insignia. Sharp edges, aggressive but clean, trustworthy plumbing brand look. Concept C: Punk / garage rock style. Raw, rebellious but still professional. Pipe forming a V, stencil-friendly shapes, slightly rough edges. Flat vector logo style, monochrome black and white only. No gradients, no shadows, no textures, no background. High readability from distance. Suitable for workwear, van decals, stickers, and websites. Looks like a real plumbing company, not a band logo. See more