Was just thinking how cool it’d be to have a graphical representation of your computer farming safecoin: tiny characters ploughing a field and carrying the safecoins he pulls out of the field over to the bank and every time he pops one in you see your account go up (like farmville/clash of clans type thing). I know it’s a bit of a silly (and possibly an ‘afterthought’ kind of idea) but little things like this could increase engagement and just give users an extra smile when they use the network.
Silly is good, you’d be surprised how well this would market.
I would also add a (coin/cash register) audio chime.
But allow people to customize their graphic and audio.