fusionbox/django-fusionbox — pull request #7 by chroto (2011-12-07 22:00:27+00:00)
Title: Adding 3 new template filters into fusionbox.templatetags

3 new filters, 2 of which deal with credit cards

starred:
optionally accepts an argument to "star out" a credit card number

cc_company:
takes a credit card number and outputs the company name
aka: 4111 1111 1111 111 spits out VISA

attr:
http://djangosnippets.org/snippets/729/
I found the attr filter useful for forms that were imported from third party apps.