Sulky makes a product that rips away and any left over you just heat with your iron and it "melts" away. You do have to use a temporary adhesive to make it stick to the quilt. I don't remember the name, but I'm sure with a search you can find it.
No gum up on the needle and bobbin case.
Another trick I learned is taping paper with blue painters tape to the area for quilting. Just rip it off and what ever is left, it washes away.
Or you can draw your design on tool (spelling) and using a chalk pencil trace your design. It leaves little marks.