You can use iodine and do a delegation from a real domain: It encodes packets in subdomains of your domain (and decodes them with a special DNS server). It is not fast.

I like to use SNI with e.g. pagead2.googlesyndication.com and www.googletagmanager.com because a lot of captive portals put ads on them, and I it on a google cloud instance since they own the IP.