There does not seem to be a collective name for a group of molds ! (the nearest Google got was 'Fungi'). I took advantage of the offer from Prince August of half price orders on molds last weekend to celebrate their new website and got the above selection , I normally try and buy second hand of EBay but the above never seem to come up for sale . So I am going to be busy this afternoon casting. http://www.princeaugust.ie/ gets you their new website.