out of thin air

out of thin air, from thin air - из ничего, из ниоткуда, на пустом месте

Meaning: if something appears or is made out of thin air, it suddenly and mysteriously appears or is made from nowhere or nothing, as if by magic
create wealth from thin air
make cards appear out of thin air
Unfortunately, I can't just conjure up the money out of thin air! -Я, к сожалению, деньги не печатаю.