Combine honey and peanut butter in a large pot and heat over medium-low heat until melted, about 2-3 minutes. Add brown rice cereal and cherries and stir to combine until mixture is sticky. Press into a 9 by 13-inch pan sprayed with cooking spray. Let cool, then chill in refrigerator for 30 minutes. Cut into 15 (2 1/2 by 3-inch) squares.