Pattern making is the process of working out the flat shapes that, once cut and sewn, form a three-dimensional puppet — and it is the skill that separates repeatable building from lucky building.
Anyone can make one puppet by trial and error. A pattern is how you make that puppet again, in a different colour, at a different size, six months later.
Drafting from a form
The reliable method starts physical. Build the foam skull first, wrap it in masking tape or plastic wrap, draw your seam lines directly on the wrapped form, cut along those lines, and peel the pieces flat. What you are holding is a pattern. Trace it onto paper and you have something you can use forever.
Seam allowance
Add it after you have traced, not before, and add it consistently — a quarter inch is standard for puppet work. Forgetting it on one piece is how a head ends up half an inch too small and nobody can work out why.
The mock-up
Sew the first version in cheap muslin or scrap fleece. It will be wrong. That is the point. Mark the corrections on the mock-up, transfer them to the paper, and cut the good fabric once.
Scaling
Because puppet patterns are essentially flat maps of a curved surface, they scale reasonably well by percentage — but the mouth plate does not. Mouth plates size to the builder’s hand, not to the puppet, so a pattern scaled up 130% still needs its plate resized to fit whoever is performing.
The hack: label every pattern piece with the puppet’s name, the seam allowance, the nap direction and the date. Unlabelled pattern pieces are indistinguishable within a week.