Six bricks isn't enough. I have no idea how to calulate the correct number, but I'd guess it's at least 12.
Hear me out ...
Private keys as Lego builds a la nostr:nprofile1qqsrhyhcgptg64tllj54evsq6syy4ekyzuuyjdst5q932qcsaa7nahcprpmhxue69uhkv6tvw3jhytnwdaehgu3wwa5kuef0p42mt4.
nostr:nprofile1qqs09jtvjlmyrxjn37zv70a89csegcz7rpyqjmnw29cveedhv7vagqqprpmhxue69uhkv6tvw3jhytnwdaehgu3wwa5kuef03s2dnm scans them from each face and reconstitutes the key.
Your wealth is built with Lego. 👀


Discussion
Definitely not. Need more and/or introduce colour.
Need to math it out! 🤓