The golden ''Helvetia'' from 1895 onwards and later the golden ''Vreneli'' ,were actually used as currencies up to 1936 in Switzerland.
They are a tradtitional gift for occasions such as Christenings, holy Communion or Church Confirmation,Weddings and Birthdays.
You can them either at a Bank, or in a store specialized in 'numismatik'
This is one in Geneva, where you will most likely find what you are looking for:
http://www.cabinetnumismatique.ch/
Small gold bracelet engraved with the babies name and DOB and/or first cutlery set, again engraved with the name of the Baby are other traditional gifts presented at this occasion in Switzerland