that's a tough one. I don't work in realist imagery like you do as much of my creative work is crafting like knitting and quilting. one of my favorite motifs to represent Bitcoin, is the log cabin piecework block. The entirety of the design is predicated on the previous piece being in place like the blockchain.

In my Bitcoin beanie design, other than the obvious Bitcoin symbol, I added in the chain because of the dependency and interlocking nature of Bitcoin and also waves because the price goes up and down. a bit tongue and cheek on that last one.