The finished project can be adhered to the tile back splash with sticky tack as it is very lightweight. (paperroseblog.com)
You could use a little sticky tack if it wobbles or if you use a different sized jug you may need a washer or may need to use a harp (think that through before you start, because I think you'll want to put the cord through the harp before you attach it to the socket.). (theinspiredroom.net)