Back in the early days of bitcoin, I was doing a lot of public speaking on bitcoin. Mostly public sector, but also banks. There was a guy out west (Casascius) who was making physical bitcoins. I was going to buy a 1, 10, and 25 so I would have something physical to pass around during my talks. Damn I wish I had pulled the trigger. It cost a couple BTC to purchase the coins. But BTC was only a dollar or so back then. Sure would be nice to have today.