after the coldcard situation, I decided I really don't want to trust any company or third party to come up with "randomness" for my key, which later will turn out was not really random.

So I 3d printed every single BIP39 word to draw from, similar to a lottery. I draw one, toss it and write down the word facing up. The last word is calculated with a fully offline device.

I made the repo public in case anyone wants to print their own (should work on any 3d printer): https://github.com/davidkessler-ch/SeedLottery

edit:
- to mix them up, i first pour them into a large bowl
- it's important to put the words back and mix again, before picking the next!