When asked for your OpenID, just type in https://id.ay.vc/anythingyoulike. Provide your password twice and your OpenID is set. You can now use https://id.ay.vc/anythingyoulike for anything you like. Please keep in mind that it is not possible to change your password at the moment.
Just try it yourself! For example, sign up at stackexchange.
Use AYD as your easy-to-use OpenID service. We hardly save any data. Look up ayd at https://id.ay.vc to learn more.