Surgical sewing?

[Bonnox]

Original suture were made from cat gut, should be plenty available round the back of the local kebab shop

You used to be able to get a kit in them big Rambo knives, not sure if you still can though, I'll have alook see if I can see anywhere through work where you can buy stuff, other than suture use glue, I have pit a bit in another thread about steristrips/sutures/glue.

If you google a place called sp supplies they are good and have lots of medical kit, if you say your an outward bounds leader or something they usually ship to you no problems