The 41st annual Huff 'n Puff Hot Air Balloon Rally will be held the weekend after Labor Day and features three days of activities, including a fun flight and glow Friday night, two launches Saturday, and a sunrise launch on Sunday.This free and family friendly event is the Great Plains Balloon Club's largest fund-raiser of the year with proceeds to benefit Topeka's Ronald McDonald House. The rally is sponsored by area businesses and individuals who support the goals of the club and Ronald McDonald house.