What are pattern scissors?

One answer may be those scissors that cut a 'deckle' (fancy) edge on photo prints. These are also now made for the kindergarten, in plastic.

Other speciality scissors include 'pinking shears' with a zig zag cut for preventing fraying of clothing edges.

And another kind are the 'thinning' scissors used by barbers for

• it's too long since I needed them!