Name is not required.

shop/migrations/0022_auto_20160530_2301.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.6 on 2016-05-30 23:01
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('shop', '0021_ticket_email'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='ticket',
+            name='name',
+            field=models.CharField(blank=True, help_text=b'Name of the person this ticket belongs to. This can be different from the buying user.', max_length=100, null=True),
+        ),
+        migrations.AlterField(
+            model_name='ticket',
+            name='order',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tickets', to='shop.Order'),
+        ),
+        migrations.AlterField(
+            model_name='ticket',
+            name='product',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tickets', to='shop.Product'),
+        ),
+    ]

shop/models.py

@@ -298,6 +298,8 @@ class Ticket(CreatedUpdatedModel, UUIDModel):
             'Name of the person this ticket belongs to. '
             'This can be different from the buying user.'
         ),
+        null=True,
+        blank=True,
     )
 
     email = models.EmailField(