I lost my silver chain necklace. Are there any silver shops that sell silver chains for men? - or a place to have something custom made I've only seen places for woman or the boutique booths at the shopping center. If not in Pattaya, is there a place in BKK?

There is a custom Silver shop on Pattaya Klang just East of the Soi Buakow intersection on the same side of the street as Buakow

I would guess that it is about 100 Meters from Bukow going towards Sukumvit. They should have what you are looking for

Second floor Royal Garden....