What would happen if governments created money for necessary projects?

Ya that's the big danger of undertaking any policies that risk 'setting a good example' for other countries (and giving national governments back, the power to create money, would severely impair other powerful countries/classes-of-powerful-people, who gain from this power being kept out of national hands):
We'd almost certainly experience economic sanctions, which put pressure on our trade balance, and cause inflation as a result - to discredit the policy.

So while I know it can be done, that it's totally economically feasible, it may be infeasible for political reasons; it's still incredibly vitally important, that people learn and are informed of the economic possibilities though, as it must happen and people need to know how much the monetary system hinders true democracy/sovereignty in its current form.

It looks like Greece might have to now begin doing this, in the coming months, just to keep their government funded - but their economy is going to implode if they exit the Euro, and they are already effectively under heavy sanctions imposed by their creditors - which is probably going to get a hell of a lot more severe if they start funding government in this way.