Maybe we should add a $150 bond and the ability to break bonds into smaller ones to make them easier to sell.
I.E $150 > 45,45,45,10,5. 45s > 20,20,5, 20s > 10,10, 10s > 5,5.
This would gives a much simpler way of making the daily donation as well as getting rid of the fear that comes with trying to sell a large bond.