[header] How to churn butter [title] Search online for a butter churn retailer. [step] They can be purchased from kitchenware and homestead specialist stores, online auction sellers and may be available through such sites as craigslist or freecycle. [substeps] Butter churns can be wooden, ceramic or glass. 
Some are small or handheld, while others are much larger and can be used when standing. Unless you're making huge quantities and/or want a workout, the handheld or small one will probably be sufficient for the standard kitchen cook.