

If you’re thinking amplifier, just grab your favourite Japanese '70s hi-fi range and go from there. Can hardly go wrong.
A half-scale Harman/Kardon 330c but with an OLED info display in the panel that held a tuning scale might kill it.
The key is to use the right materials. They sold a modern CD-based stereo a few years ago that apes the look of a small Marantz 22xx, but being plastic garbage, sort of fails the mission. Conversely, Yamaha did some new silver-face amps that don’t look like dollar-store tat.
When it was new it had minor charm-- the idea it was cheap and there were trillions of coins in circulation made it so penny-ante that people could have fun with it, and experiment with the tech on a tiny budget.
I played a little with it back in 2014 or so. You could buy some by interacting with a Reddit bot, and I mined a few coins on a GTX 660 (midrange gaming card for the day.
I recall sending 5000 coins to a local dogs-rescue that tried to join on the novelty, and paying for some used RAM in part with it.
By then BTC was basically unplayable without a rack of ASICs and it was already moving past the “currency” phase straight to “speculative asset”.