You can have a custom URL, e.g. https://moneo.io/moneo-demo-store, however you couldn't use a domain like www.moneo-demo-store.com with us.  If in the future there was overwhelming demand, we could look at it, however it would be complicated (especially with the payments system, checkout process, email notifications with tokens, job matching and notifications, ratings, etc.).

If you'd like to create a store, you can do so here for free: https://moneo.io/sell