I also suggested Liberland create some sort of Virtual World with blockchain-based property. My brother has been really interested in this concept since his son is playing MineCraft, and there's this server BitQuest where you can claim land for Bitcoin and own your own digital property. Unfortunately that server isn't fully integrated on the blockchain, so there's centralized control over the property. Liberland could be the spark to create a fully digital viritual space where virtual property reflects real Lberland property :)

He seemed interested in the idea as they have tons of designs for the future architecture of Liberland, like commons infrastructure, buildings and parks, that could be displayed and created and interacted with in the virtual space before being made in meatspace.