How to make currency increase animation GUI?

How can I make a GUI animation like the one in the video below [0:11] (the part where the little bricks appear below the total brick count and then add up to the total)

You would generate an image of the brick in a random location within the bounds, then start a tween for each of them (with a slight delay between each) and at the end of the delay, add +1 to the currency