diff --git a/app/models/concerns/has_attributes.rb b/app/models/concerns/has_attributes.rb
index 3e2abe7a..588b41e4 100644
--- a/app/models/concerns/has_attributes.rb
+++ b/app/models/concerns/has_attributes.rb
@@ -7,6 +7,29 @@ module HasAttributes
     attr_accessor :custom_attribute_values
     after_save :update_custom_attributes
 
+    def self.create_default_attribute_categories(user)
+      return [] if ['attribute_category', 'attribute_field'].include?(content_name)
+
+      categories = YAML.load_file(Rails.root.join('config', 'attributes', "#{content_name}.yml")).map do |category_name, details|
+        category = user.attribute_categories.create!(
+          entity_type: self.content_name,
+          name:        category_name.to_s,
+          icon:        details[:icon],
+          label:       details[:label]
+        )
+
+        category.attribute_fields << details[:attributes].map do |field|
+          af_field = category.attribute_fields.with_deleted.create!(
+            old_column_source: field[:name],
+            user:              user,
+            field_type:        field[:field_type].presence || "text_area",
+            label:             field[:label].presence || 'Untitled field'
+          )
+          af_field
+        end if details.key?(:attributes)
+      end.compact
+    end
+
     def self.attribute_categories(user, show_hidden: false)
       return [] if ['attribute_category', 'attribute_field'].include?(content_name)
       # This doesn't work the way I think it does
@@ -71,6 +94,58 @@ module HasAttributes
       @cached_attribute_categories_for_this_content
     end
 
+    # Replacement method for the above that doesn't make create calls, for use after everyone is migrated
+    # def self.attribute_categories(user, show_hidden: false)
+    #   return [] if ['attribute_category', 'attribute_field'].include?(content_name)
+
+    #   # This doesn't work the way I think it does
+    #   #return @cached_attribute_categories_for_this_content if @cached_attribute_categories_for_this_content
+
+    #   # Always include  the flatfile categories (but create AR versions if they don't exist)
+    #   categories = YAML.load_file(Rails.root.join('config', 'attributes', "#{content_name}.yml")).map do |category_name, details|
+    #     category = AttributeCategory.with_deleted.find_by(
+    #       entity_type: self.content_name,
+    #       name:        category_name.to_s,
+    #       user:        user
+    #     )
+
+    #     category.attribute_fields << details[:attributes].map do |field|
+    #       category.attribute_fields.with_deleted.find_by(
+    #         user:              user,
+    #         old_column_source: field[:name],
+    #         field_type:        field[:field_type].presence || "text_area"
+    #       )
+    #     end if details.key?(:attributes)
+
+    #     if show_hidden
+    #       category
+    #     else
+    #       !!category.hidden ? nil : category
+    #     end
+    #   end.compact
+
+    #   # Cache the result in case we call this function multiple times this request
+    #   @cached_attribute_categories_for_this_content = begin
+    #     if categories.first&.user&.present?
+    #       acceptable_hidden_values = show_hidden ? [true, false, nil] : [false, nil]
+    #       categories
+    #         .first
+    #         .user
+    #         .attribute_categories
+    #           .where(entity_type: self.content_name, hidden: acceptable_hidden_values)
+    #           .eager_load(attribute_fields: :attribute_values)
+    #           .order('attribute_categories.position, attribute_categories.created_at, attribute_categories.id')
+
+    #         # We need to do something like this, but... not this.
+    #         #.eager_load(attribute_fields: :attribute_values) # .eager_load(:attribute_fields)
+    #     else
+    #       categories
+    #     end
+    #   end
+
+    #   @cached_attribute_categories_for_this_content
+    # end
+
     def update_custom_attributes
       (self.custom_attribute_values || []).each do |attribute|
         field = AttributeField.includes(:attribute_category).find_by(
diff --git a/script/initialize_categories_on_old_accounts.rb b/script/initialize_categories_on_old_accounts.rb
new file mode 100644
index 00000000..5cbe32fa
--- /dev/null
+++ b/script/initialize_categories_on_old_accounts.rb
@@ -0,0 +1,23 @@
+puts "Turning off SQL logs"
+old_logger = ActiveRecord::Base.logger
+ActiveRecord::Base.logger = nil
+
+to_migrate = User.all.pluck(:id) - AttributeCategory.pluck(:user_id).uniq
+
+users_migrated = 1
+to_migrate.first(100).each do |user_id|
+    user = User.find(user_id)
+    puts "Migrating user ##{user_id} #{user.email} (#{users_migrated}/#{neg_ids.count})"
+    
+    ActiveRecord::Base.transaction do 
+        Rails.application.config.content_types[:all].each do |content_type|
+            puts "\tMigrating #{content_type.name}..."
+            content_type.create_default_attribute_categories(user)
+        end
+    end
+
+    users_migrated += 1
+end
+
+puts "Turning SQL logging back on"
+ActiveRecord::Base.logger = old_logger
\ No newline at end of file