So, what's interesting here? It's not new, it's something like scaled Meccano from 1901. In its scale it's useless cause of reliability of fastenings over time

So, what's interesting here? It's not new, it's something like scaled Meccano from 1901. In its scale it's useless cause of reliability of fastenings over time, dust and ugly appearance. DIY is (typically) quite the opposite. Let it be, but you have to lose your childhood to buy something like that.