This is the first time I've made a cast with brass. The result is not bad but melting brass is a pain so I probably won't use it too often. I definitely don't see being able to use it for ant colonies since it takes so long to melt even a small amount. Also, the higher temperature causes it to react far more violently when it hits water than aluminum.
I believe this is a bolete mushroom. A few of these were in the yard and this was the best one. I don't know the exact type of mushroom this is. I don't see these very often and haven't since. If you know, tell me in the comments section.
See the cast page for more info and pictures: www.anthillart.com/castings/095
If you haven't seen my other mushroom cast videos that are annotated, here's a few answers to frequently asked questions:
-The white liquid is plaster
-The mushroom inside the plaster is removed before the brass is poured in
That's all that I can think of right now. I'll add more if I think of anything else.