pull something out of the hat
pull something out of the bag
pull something out of thin air

She pulled a yellow envelope out of her bag, opened it.

My eyes drifted shut as he pulled the laptop out of his bag.

So I pulled a pineapple out of my bag and paid him with that.

If you are ready to pull your own computer out of your bag and join in, take heart.

She pulled a beach mat out of her bag and spread it on the sand.

They ran up to the reception desk, and Beth pulled a gun out of her bag.

Jack Valenti may have pulled one more trick out of his bag.

She pulled the hat out of her bag and modeled it for them.

Finally, he turned and pulled a club out of his bag.

I pulled the papers out of my bag and scanned the top page.