The coolest thing about them is that they have ovoid holes running through the nut that go almost all the way into the center. So, we decided to pick one up and try turning it on the lathe.
After persuading a large family of spiders to vacate, the pod was trimmed on the band saw and then turned and sanded on the lathe into a cylinder.
The wood inside is very hard and can be sanded to almost a gloss finish. The pod was then cut in half and drilled out to make two small tea light holders.
We really like how the light escapes from the holes in the pod. If we ever pick up more, I think that they will be made deeper so that this lighting affect is amplified. Either way, it was a half-hour well spent! I do hope they're fire-proof...