I once printed out all 4096 BIP39 words across eight pages, and used a bazillion dice rolls in pairs (red die higher, choose left, white die higher, choose right, same value re-roll), based on the met...
What do you mean bazillion times? One dice roll gives you 6 choices, or ~2.58 bits of entropy. For a 256-bit key you then need at most 100 rolls. Then convert that secret key to BIP-39 words. 😎