Helps to have a stirplate, flask, and stirbar for this so you can keep the yeast in reproduction.
Pacman is easy to get. Make up a 1/2 cup starter with 1/2oz DME, and 1/8tsp of yeast nutrient (diammonium phosphate). Boil the sucker for about 20 minutes, then let cool.
Pour yourself 3 nice glasses of dead guy ale, leaving about an inch of beer at the bottom of each bottle. Sanitize the neck and rim of the bottles with rubbing alcohol or vodka, and then flame them. Swirl the bit of beer/yeast in the bottom, and pitch all 3 into the starter.
Let the starter go for a couple of days on the stirplate, then step it up with 1cup of nutrient rich wort (same ratios as above). Let it go for another couple days, then pitch another cup.
By the end, you should have enough pacman to fill 3 white labs vials about half-way. I know it works with Dead Guy, because I did it just a couple weeks ago just like this. And in UT, they don't take any precautions for yeast health, like keeping beer in the fridge at the liquor stores....but I digress.
That's the lazy way to do it, anyway. A better way would be to streak them with an inoculation loop on some malt extract/agar plates, and then select some health colonies to propagate, but I'm going to go out on a limb and say that's more than you'd want to do
.