Draw your shape onto the paper, cut it out, iron it shiny side down to the wrong side of your fabric. Remember you may need to reverse that image before tracing to freezer paper. Don't look at my old dirty iron, the new ones just don't last around here. I've gone through 3 new ones in 2 years, so old ugly Betty here is here to save the day.
Cut about 1/4" away from your template, cutting little snips about every quarter inch almost up to the template, leave about a 1/8" space not cut.
Using a small paint brush dipped in diluted starch, I paint on the starch around the edge.
Carefully iron the edge down to the back of the template, the starch acts as a glue and also helps the fabric keep its shape as its being pulled away from the freezer paper.
Remove the freezer paper, and TADA! the perfect shape, smooth edges and nothings wonky! And that template can be used several times. How many? I don't know I've never had one go bad.
Until next time " Quilt out of your Comfort Zone!"