Easiest way to make leads on minecraft?

watch the distance when you're walking something home - go too far ahead and the lead snaps and drops on the floor. you can also tie it to a fence post if you need both hands for a minute. villagers can't be leashed, if that's what you were planning.

four string round a slimeball, two leads out. slime is the hard half - swamps at night, or find a slime chunk and light every surface in it so nothing else can spawn. fastest shortcut is a wandering trader though, his llamas come on leads and you get those.