I recently redesigned one of my personal Web sites - an art portfolio - using an Airtable base on the backend. If you’re interested, you can check it out here: http://art.timdietrich.me
The site is PHP-based. It pulls all of the artwork (including the information about each piece and the images themselves) from the Airtable base via the Airtable API. It also uses Stripe to handle credit card payments, and saves the orders back to the Airtable base. And for email notifications and receipts, it uses Mandrill.
More information is available on my blog: http://timdietrich.me/blog/airtable-based-art-portfolio-site-launched/
Thanks for checking it out - and let me know if you have any questions about it.