We spent a couple of hours having a play with cold epoxy resin with limited success.
The slowcure resin we used is probably better suited to specific projects where you need the resin to flow and settle to a nice flat surface.
The silicon moulds are fun to use and we made a lovely smooth sphere and a cube (they’re only 10mm high)!!
It’s not for me and I can’t help thinking that it’s just making more plastic to go out into the world… I’d rather be working with glass.