Only 1.5% of the Argentine population donates blood. Less than 8% of what would be needed. Maybe what is missing is a good reward.
Only 1.5% of the Argentine population donates blood. 8% less than would be required. People who get a tattoo can not donate blood for a year. Rather than seeing it as an obstacle, we make it the solution. We invited a group of tattoo artists and created our own tattoo studio. Only, instead of money, we charge in a much more valuable currency.
People donate their blood before doing the tattoo. One way not to lose this year is that they will not be able to donate blood.