Start with a sketch, not a pattern

Every soft toy you have ever loved began life as a doodle. Before you reach for the calico, spend half an hour with a pencil and paper working out what you actually want the finished creature to look like. Draw it at full size — the size it will be when it is stuffed and sitting on a shelf — because drawing at 1:1 removes all the awkward scaling maths later on.

Draw at least two views. A front view tells you how wide the head should be and where the ears sit; a side view tells you how deep the body needs to be and where the tummy bulges. This second drawing is the one most people skip, and it is the reason so many homemade bears come out looking like they have been ironed. If your toy has a muzzle, a snout or a rounded back, you need that profile on paper before you cut anything.

Work on greaseproof paper, tracing paper or even the back of a roll of wallpaper lining. Something you can see through is a genuine help when you want to check that two shapes mirror each other.

Breaking a three-dimensional toy into flat pieces

A plush toy is really a set of soft tubes and rounded boxes. Once you spot that, pattern drafting becomes much less mysterious. A simple bear head is two side panels plus a strip running down the middle — the gusset — which gives the head its depth. A body is two side panels and a base. Arms and legs are tapered tubes: two identical shapes sewn together, with a curve at the top where they meet the body.

• Curves, not corners. Straight lines create angles when stuffed. Round off every junction generously.
• Use darts for shape. A small V-shaped dart at the top of a head or the base of a body pulls flat fabric into a dome.
• Keep symmetry honest. Fold your paper in half and cut both sides at once so the left and right pieces are true mirror images.
• Label everything. Number each piece, mark where it joins, and draw an arrow for the direction of stretch if you are using a knit fabric.

Test with calico before you cut the good fabric

Calico is the dressmaker's best friend and it should be yours too. It is inexpensive, it does not slip under the needle, and it holds a pencil line beautifully. Cut your paper pieces out, pin them to calico, and sew a full test toy using a 1cm seam allowance. Turn it, stuff it lightly, and look at it honestly.

This is where the real information appears. You will see immediately that the ears are too far forward, the legs are too short, or the whole thing is wider than you imagined. Stuffing matters here as well — overstuff a test toy and every seam line shows; understuff it and nothing holds its shape. Aim for the fill you would actually use.

Do bear in mind that calico has almost no stretch, while cuddle fleece, minky and jersey will make the identical pattern come out shorter and fatter. If you plan to work in a stretchy fabric, either accept that shift and adjust, or add a little negative ease to your pattern from the start.

Getting seam allowances right

Seam allowance is the quiet thief of plush toy proportions. A 1cm allowance removed from every edge of a 6cm ear eats a third of it. For small pieces — ears, paws, tails — drop to 5mm. For bodies and heads, 1cm gives you enough fabric to clip and turn comfortably.

Mark the sewing line, not just the cutting line, on your calico test piece. A pencil line drawn 1cm inside the edge lets you sew accurately and see exactly where the finished seam will sit. When you sew curves that bulge outwards, snip small notches into the allowance so the fabric can spread. On inward curves, clip almost to the stitching line so it can close neatly without puckering.

Adjusting and re-testing until it feels right

Three or four rounds of testing is perfectly normal, even for people who draft patterns for a living. Keep every calico version — they are your record of what you have already tried.

• Head too small? Add 5mm all round at the neck join rather than enlarging the whole head, which will throw off the ears.
• Limbs splaying sideways? Move the joint point further down the body panel.
• Flat, squashed face? The gusset is too narrow. Widen it by 1cm and test again.
• Toy looks lopsided? Check you have cut one piece reversed. You need two of each shape, not two identical.

Tiny changes make big differences at this scale, so change one thing at a time or you will lose track of what worked.

Turning a test piece into a pattern you can keep

When you are happy, trace the final shapes onto card rather than paper — card survives being pinned and reused for years. Write directly onto each piece: the seam allowance, the fabric you used, the order of assembly, and roughly how much stuffing it took. Date it, and if you later alter anything, make a fresh card rather than editing the old one.

If the toy might go to a child under three, embroider the eyes and features rather than attaching beads or buttons, double-stitch every seam, and check your materials against current toy safety requirements. A pattern you have drafted yourself and refined over several test versions will always fit better than one you borrowed, because it has been shaped around the toy you actually wanted to make.