Slipcasting my horn mould. Finally.
It's finally dry enough to slip cast, woooooo hooooooooo!!!
I'm going to do a really thick first cast to make sure it's as stable as possible so it survives after I put the curve into it.
James was helpful suggesting a technique where we could safely tip the mould out together using a large piece of stuffing to support it's weight. As you can see, the cast is nice and thick.
I left it draining for a few hours (3ish), keeping everything crossed that it would come out well.
I've left it overnight to dry a little and will take it tomorrow and try to bend the cast into a pleasing horny shape.