Carts Against Humanity
The e-commerce geeks in us are all over this idea from getelastic.com. They've created a custom, ecommerce checkout-themed version of Cards Against Humanity, appropriately named Carts Against Humanity.
We don't know many people who would play this with us (except for our friends over at Shopify), but if you're into it, they've made a printable PDF available for download.
Be sure to checkout check it out.