i'm glad you asked because i've been meaning to research fusibles, too
here's a review of fusibles
http://quiltinggallery.com/2012/05/0...w-on-fusibles/
i searched JAF and it seems they only sell the feather lite in printable sheets and it's only about a 1/2 yd for the price
http://www.joann.com/heatn-bond-ez-p.../14244891.html
if you use a lot of it, this bolt is a good price
http://www.amazon.com/Therm-Heat-Bon.../dp/B007C16TY6
if you don't use that much this is one of the places it's sold by the yard
https://www.fabric.com/buy/0293642/h...on-adhesive-17