materials for joint Options

[*mona lisa*]

Hi. Well, I have to construct a hip joint. It's really hard, and I'm all out of ideas of what materials to use. We have to use our imagination and come up with these things. Life would be so easy if your teacher told you all of these things.

Ok. Well, I need to know what I can use for bursae, ligaments, tendons, and muscles.

Ligaments: something that is rigid, but still have a tiny bit of stretch
Tendons: very strong, can be stretchy
muscles, obviously something that can stretch
bursae: it's a small sac used for cushioning

Any ideas?

[*mona lisa*]

Oh oh oh, you can use paper clips as connecting tools.
since bursae are fluid-filled sacs, you may consider using a small balloon and flling it half way with some kind of dense liquid? you can hide/tuck in the mouth of the balloon easily. since it's also a gliding surface, you can dab on some oil  .
ah... i don't know.

Good idea. I'm just afraid the balloon might pop somehow when other people test it out.

use nylon string for ligaments and tendons, as nylon string as a bit of stretch to it, but isn't rubber band stretchable.  also quite handily meltable.

Great idea! I'll have to check into that. Thanks!