can someone help me out on thinking of a way to make a working model of a body part like a leg or arm?
534925
By using commercial construction kits or making plaster parts joined by mechanical connections from a hardware or automotive store. \n\nOr, go to:  http://www.einsteins-emporium.com/science/human-anatomy/sh000.htm\n\nOr, go to:  http://www.google.com/search?hl=en&lr=&q=anatomy+models+arm
557626
try google images... some great pic and anatomical diagrams
861018
An easy solution would be to use Playdough! (or other claylike materials).  It's easy to form into various shapes and stick together into a model.  And it is colorful without needing any extra painting.  You can easily add labels on toothpicks or a color key to describe the different parts.
74218
It would need to be giant wings, and you would need to have a huge ammount of all arm muscles, but if you put huge wings on your legs too, it might be possible if you are coordinated enough.
644797
Come on, use your imagination and do it yourself!  This is not hard at all!\n\n(good one, goth_brat)
570894
Well on this planet the answer is NO,  Mammals (including people) only have two arms and two legs as a maximum, however as you said it is a Si-Fi drawing, then you can make it look like whatever you want, the limit is your imagination.
925475
I thinkl Autodesk Autocad will be the best one. You can download a trial at \n\nhttp://www.autodesk.com/
551851
www.3dtotal.com\nthe right place for right tutorials for character modelling.\nits just great!\n\ncheers!\nKrishnam
447399
Try this site, it might give you some ideas, help.\n\nwww.modelexpo-online.com
966283
Try using the other hand for self stimulation, I did that and it took years, but straightened out nicely, just take note so that it doesn't curve the other way.  It also makes your arms the same size.
569326
uh, well, one time my friend and I had to do a project like that.  We got two of those clear bodies (you know, the mannequins they have that display clothes.)  You can get clear ones at Sam's club for free, if you know where that is.  We made a model of the body.  Like, we used straws for the intestines and a bowl for the stomach.  On the other body, we used sharpie and labeled the different parts.  (We also drew them)  Then we got a medicine dropper and put water mixed with food coloring in it.  We poured the water/food coloring down the first mannequin's esophagus.  Everyone could see it going through.  It was really cool and we got an A+!\n\nAlso, explain what's happening as the water/food coloring goes down.  Don't forget to put a bowl underneath, or else the water/food coloring will spill.  I guarantee this will get you a good grade.
433917
Make one yourself.  Use MS Paint or if you're really feeling fancy, Photoshop.  Of course, then you'll have to host it somewhere...
1066965
If you are talking a human leg replacement - that is still very experimental. Only being tried in certain european countries. If you are talking prosthetics then that is available in pretty well every country.
611204
an arm and a leg.  muahahahah!
919108
I'm a biology teacher, and a cell model is a project every year.\n\nUse a HARD beachball about the size of a basketball....or a cheap dimestore basket ball. Cut in in half and use thin wires to suspend the various organelles inside.
24463
Its easy to make one yourself.\n\nhttp://www.graphic.org/venbas.html
79312
Get a doll. It'd probably look better than what you make.