diff --git a/lib/tasks/pet_types.rake b/lib/tasks/pet_types.rake
new file mode 100644
index 00000000..9bedf2a1
--- /dev/null
+++ b/lib/tasks/pet_types.rake
@@ -0,0 +1,49 @@
+namespace :pet_types do
+  namespace :pranks do
+    desc 'Create a prank pet type with one state and one asset'
+    task :create, [:color_id, :species_id, :body_id, :asset_remote_id, :asset_url, :female, :mood_id, :unconverted, :zones_restrict] => :environment do |t, args|
+      args.with_defaults(female: false, mood_id: 1, unconverted: false,
+        zone_id: 46, # static, used by UC pets
+        zones_restrict: '0000000000000000000000000000000000000000000000000000')
+      PetType.transaction do
+        swf_asset = SwfAsset.new
+        swf_asset.type = 'biology'
+        swf_asset.remote_id = args[:asset_remote_id]
+        swf_asset.url = args[:asset_url]
+        swf_asset.zone_id = args[:zone_id]
+        swf_asset.zones_restrict = args[:zones_restrict]
+        swf_asset.body_id = 0 # biology assets use 0, not pet type's body id
+        swf_asset.has_image = false
+        swf_asset.image_requested = false
+        swf_asset.save! # get it an ID
+        puts "Asset #{swf_asset.inspect} created"
+
+        pet_type = PetType.new
+        pet_type.color_id = args[:color_id]
+        pet_type.species_id = args[:species_id]
+        pet_type.body_id = args[:body_id]
+        # This isn't really a valid image hash, but we can teach PetType to
+        # use this override when reporting its image URLs.
+        pet_type.image_hash = "asset:#{swf_asset.id}"
+        pet_type.save!
+        puts "Pet type #{pet_type.inspect} created"
+
+        pet_state = pet_type.pet_states.build
+        pet_state.swf_asset_ids = "#{swf_asset.id}"
+        pet_state.female = args[:female]
+        pet_state.mood_id = args[:mood_id]
+        pet_state.unconverted = args[:unconverted]
+        pet_state.labeled = true
+        pet_state.glitched = false
+        pet_state.save!
+        puts "Pet state #{pet_state.inspect} created"
+
+        parent_swf_asset_relationship = ParentSwfAssetRelationship.new
+        parent_swf_asset_relationship.parent = pet_state
+        parent_swf_asset_relationship.swf_asset = swf_asset
+        parent_swf_asset_relationship.save!
+        puts "Relationship #{parent_swf_asset_relationship.inspect} created"
+      end
+    end
+  end
+end
\ No newline at end of file