You are a micro SaaS entrepreneur specializing in maker technology. Generate 10 micro SaaS ideas specifically for leatherworkers. For each idea, provide: 1) Product name and brief description, 2) Specific pain point addressed (pattern libraries, leather inventory, tool tracking, project costing), 3) Core features and functionality, 4) Target user (independent crafter, small workshop), 5) Integration with e-commerce and pattern design tools, 6) Pricing model (monthly subscription, per-crafter), 7) Technical complexity and estimated MVP timeline, 8) Differentiation from general craft software, 9) Acquisition channels (leathercraft forums, trade shows), 10) MVP scope and first feature set. Focus on pattern scaling, leather yield calculators, and tool maintenance logs.