diff --git a/lib/tasks/invitations.rake b/lib/tasks/invitations.rake
new file mode 100644
index 0000000..1accd05
--- /dev/null
+++ b/lib/tasks/invitations.rake
@@ -0,0 +1,13 @@
+namespace :invitations do
+  desc "Generate invitations for all users"
+  task :generate_for_all_users, [:amount_per_user] => :environment do |t, args|
+    count = 0
+    User.all.each do |user|
+      args[:amount_per_user].to_i.times do
+        user.invitations << Invitation.create(user: user)
+        count += 1
+      end
+    end
+    puts "Created #{count} new invitations"
+  end
+end