diff --git a/app/models/application_record.rb b/app/models/application_record.rb
index 10a4cba..5a68703 100644
--- a/app/models/application_record.rb
+++ b/app/models/application_record.rb
@@ -1,3 +1,7 @@
 class ApplicationRecord < ActiveRecord::Base
   self.abstract_class = true
+
+  def self.random
+    order("RANDOM()").limit(1).first
+  end
 end