Question about Pygame Timer in Python?

Please only answer this question if you have at least some experience in Python and/or OOP in Python.

Hello, I'm using Pygame and Livewires in Python to create a balloon pop type of game. The player has a launcher they move with the mouse, and presses the left mouse button to fire. I want to make it so that the every 25 clicks, the row of balloons moves down using the dy property. While I did get this to work successfully, I'm having a bit of a problem. I reference the dy property in the balloons constructor method through a global variable called SPEED. Under the launcher class, I have a simple if statement that says, if CLICKS (number of clicks recorded from 0-25) == 25, set SPEED to 1. This in turn, sets the dy value to 1, making the balloons move down at a even pace. However, I want them to stop after about 1-2 seconds. I've canvased the internet for literally the past 24 hours, and have looked through every python manual I own, and still cannot figure this out. I've also tried other sites like stackoverflow.com, but I don't think they're understand my bad explanations :) If someone could help me, I would very much appreciate it.