So I've seen all the plasmid hatchers and shredded nerf balls (which was actually not a bad idea). None of those really seemed to me like what I imagine a Mycetic Spore to be. In the Apocalypse book, it describes them as "gory flowers." All the other ones I've seen just look like big eggs. So here's what I came up with.
This is built out of clay. It took me about half an hour to build, which is why it looks terrible. I built it to be a proof-of-concept piece, as an ersatz pod until I can build some better ones out of proper wargaming materials. Clay is simply too heavy and too fragile for game pieces, though it makes excellent terrain.
None of the other spore models I've seen have the proper tentacles or bio-weapons. Two of mine broke off during transportation, but they're easily re-glued.
It did come out a bit big, so I'm only going to use the top fold to measure deployment distance. I think I'll make the petals a bit smaller next time, but I wanted it to clearly look like it could hold 20 models or one Carnifex. This model is only a step in the direction I'm going with this.