Nebraska allows charity raffles. Please the following for more info:
Neb. Rev. Stat.§ 9-1,101 et seq Department of Revenue
Nebraska charitable gaming created a powerpoint regarding raffles : http://www.revenue.nebraska.gov/gaming/Lottery_Raffle_11-2012.ppt
Nebraska has defined lottery and Raffle separately, where lottery= cash prizes and raffles = Merchandise Prizes. Both types of charitable gaming are allowed for eligible non-profits to hold.