I have the worst luck finding fancy serial numbers, stars, or old coins in the wild. I could always buy a cheap star note but that feels like cheating. Instead I cheated a different way - went to the credit union and asked for three $100 straps of $1 bills. Also picked up two rolls of half-dollars.
Out of $300 in $1 bills and $10 in half-dollars this is the haul:
One decent half-dollar, and a 1964 no less. And one measly star note. But I found one on my own and that's what matters. Check out the condition of the half-dollar, this ones a keeper.