Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.
Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
Cute or Not - From BuzzFeed: Is your pet good looking or ugly as sin?
Shopify Pay - Give shoppers a fast, secure way to pay
WooCommerce - A freely available eCommerce plugin that enables shop facilities on your WordPress website. Functionality enabling extensions & beautiful themes available.
Stripe iOS SDK - Accept both Apple Pay and credit card payments easily on iOS