If you have several credit cards you can create multiple accounts on godaddy and get a bunch of $1 domains although renewals are very expensive there. I guess it's not bad for testing a site for 1 year before the renewal comes.
ok most domains, godaddy too not are for $1 sale first year, you will find more, biz,info,com domains here with first year promo sale.
but not .co, .news, .blog, .today....maybe here and there for $3-5 first year.
I wonder I can have in my country second godaddy account with my debitcard ro get cheap promo domains $1-3 ?