It is really not that hard to sew jersey knit fabric, and even to applique it, without any kind of fusible webbing whatsoever.
HOW TO SEW An Applique on Knit Fabrics
How to applique-Beginners Guide to Fabric Applique - La creative mama
How to do Fusible Applique or Raw Edge Applique Tutorial
NO SEW Fabric Appliques, How to Make Fabric Appliques with Heat & Bond
The Quick Way to Hand Embellish a Knit T-shirt – The Daily Sew
Recycled T-Shirt Crafts (Without Fusibles) • Crafting a Green World
Choosing Fabrics for Successful Reverse Appliqué Projects – Nancy's Notions
Made by Me. Shared with you.: Tips Tricks and Techniques: Knit Appliques
Made by Me. Shared with you.: Tips Tricks and Techniques: Knit Appliques
Stretch Smart! Complete Guide To Interfacing for Sewing Knits
Create Unique and Beautiful Knit Garments with Appliqué and Embroidery – So Sew English Fabrics
The Secret to Sewing Knit Fabric (you don't want to miss this one)
Zig Zag Modern Fuse Applique Baby Quilt - Fairfield World Craft Projects
Jersey Knit Applique Technique