You should advertise the project, which helps to register domain names. You need to find the questions in network, like "Where can I register a domain" and to talk about our service, putting a link.
We can pay about $1 per each link which stay on place as minimum 2 days. (not detected like a spam)
2 freelancers are bidding on average $155 for this job
Give me a link and some details about your project/domain and I will have your site flowing with constant traffic.