Lead-effect coating of Cast Iron

I have a cast iron figure in a fountain (boy with dolphin) to which I want to apply a 'lead finish' or 'lead effect surfacing'. (lead = the metal, Pb). Are these finishes achieved by a chemical application or by by an electroplating technique? The use of lead acetate solution as a surface application by immersion with, or without, a galvanic circuit is the only potential method I can think of. Are there other techniques? Also, am I going to be able to produce any lead acetate solution I might need from lead sheet immersed in vinegar ⇦in bulk on eBay or Amazon [affil link] ?

You can get a leading polish from good hardware shops - just like the Victorians used in their grates. It is cheap and very messy but gives a pleasant semi glossy finish. Just ask for "leading polish for grates".