Then stop selling bonds and start investing directly (build schools, repair bridges, pay your employees, etc.).
Countries don't have to take the detour through state bonds because they can make money out of thin air. State bonds are a self-imposed and there's no law of nature that mandates using them.
Serious question? Money today is nothing more than a number in an account. When a country needs more of its own currency, it can increase it's account by that amount.