The grandkids are intrigued, of course, because every part of the plant is poisonous, including the gorgeous seeds that come in shades of orange and red, from pale to rich and deep. They also found that by scraping them against a concrete floor and then touching it to your skin, you can get a mild electric shock. Leave it to boys to discover something like that.
What I've discovered is that the seeds make interesting jewelry.
Here's a bowl of them, with one of the unopened pods in the middle,
and here are some in my hand, after they've been drilled for stringing, so you can get an idea of the size.
After you get them out of the pod (I just put the pod on the sidewalk and stomp on it - don't worry about damaging the seeds; they're tough), you need to drill holes in them, and unless you want to also drill holes in your fingers, you'll need a small drill press. It's tedious work, getting them lined up right, and be sure to tighten the press as tight as possible so they don't shift around. I used my Dremel tool and a fairly small drill bit. The other seeds, in and beside the pink bowl, are from the tranquility tree (I drilled these but haven't done anything with them yet, and haven't been able to find any information on the tree except that apparently the name's used for an online game, so I won't say any more about them right now, except that they're very interesting and attractive).