We use twine from a bale of hay / straw. Fold a full piece in half, tie the two ends to the milk stand at about the rear leg is. This will leave you with the looped end. Fold loop over and pull the twine through to make a slip. This makes it easy to get it on and off... kinda. In the mean time, bring her in a few times a day if possible with no grain in the lip pan and just start touching her udder all over. If she calms down for say 30 seconds or so while you are touching it, give her a hand full of grain. Being smart, goats catch on pretty fast. We spend 2-4 weeks training the girls before they kid so when the milk starts to flow, they are already calm about it. But there are always the trouble makers...