Soap moulds are ever popular, they are especially great to make out of silicone rubber so that you can use hot soap mixtures as well as the relatively cool glycerin type soaps. As with all out moulds masters there is the actual master item you can print as well as a convenient wall that you can print as well to contain the liquid silicone rubber while it is setting . As a side not to remember with silicone especially the standard sort like mold max 30 from smoothon which is a tin cure silicone is that they can withstand up to 320 deg centigrade for a short time but 180 deg centigrade sustained time though at this temperature the mould will start to degrade fast so keep that time as short as you can.Print settings:Filament is ABSExtrude at 245 deg cBuild bed @ 60 degcLayer height @0.2mmInfill @ 15%top bottom and sides all at 0.8mm or 4 layers