Lord of the Flies

I'm doing a character project for Piggy in Lord of the Flies. I have to put 5 objects in a bag to describe his character. I have these so far- A pair of glasses
to show that he's intellectual. A shell could represent how the boys have become more savages. A rubiks cube to show that Piggy is smart.
I need 2 more. Can you help me think of 2 more things?

A school tie to show how he is trying to cling to the rules of civilisation.

A rock to symbolise how the boys no longer want to listen to the voice of reason and therefore kill it.