Preheat oven to 375°F. Spray large baking sheets with cooking spray.
Combine:
Stir together cake mix, melted butter and eggs in large bowl until well blended. Let stand 5 minutes.
Scoop 1 tablespoon portions of cookie dough on baking sheets, leaving 1-inch between cookies. Bake 7 to 10 minutes, until very lightly browned and centers are set. Cool completely.
Create:
Frost flat side of cookies with Fruity Pebbles™ frosting. Pour Fruity Pebbles™ cereal into a shallow bowl.
Put a scoop of ice cream on top of frosting on half of the cookies. Top with a second cookie and press to sandwich. Roll sides of ice cream sandwiches in Fruity Pebbles™ cereal.
Fruity Pebbles™ Ice Cream Sandwiches can be made and stored in the freezer for about an hour before serving.