There isn't an "unban client." What a server does when they ban you is blopck your UUID and/or your player name, and sometimes your IP. An unban client would essentially...
I recommend (if using the HD edition) you make 6 militaristic buildings for each of the militaristic units you intend to make the most of. Start doing this in feudal,...
Yes, you can install a regular zipper with a normal foot. However, if you want to master invisible zippers (and do other things like sewing on lace and sewing over...