Currently, I have two online shops where I sell my work.
I have also added bitcoin as a form of payment. Currently I am using the service Coinbase out of San Francisco. Please understand that cryptocurrencies are thought to be highly speculative and each user must determine their own monetary risk.
To pay with bitcoin email me your list of items/colors and I will send you an invoice through Coinbase. Currently you cannot use bitcoin on etsy or bigcartel. Wordpress however accepts bitcoin in payment for their hosting services as do many other types of businesses.