If you are promoting the same offer (or an offer within the same niche), you will not need to create a new domain for each funnel that you make. 

If, however, you have created a domain name during the Business Launch Challenge and are wanting to promote non-Fullstaq products that are in a different niche (ex: a gardening product), you will need to create a new domain in accordance to the new offer you are promoting as you will be driving traffic to a different funnel. 

However, if your new offer is within the same niche (Make Money Online), then there is no need to create a new domain and your current domain may be suitable to use. 

Thank you,

The Fullstaq Team