(Or imp.   I'm definitely thinking this is more an imp.)

Well, this is most definitely a work in progress, so bear with me.

I stole... I mean got my inspiration from two different pages, both of which ellude my immediate recollection, but I will give them proper credit when I have 5 minutes or so to do the research.  I believe the first time I saw this, someone had made a full sized one out of a Bucky skeleton.  Being on a much tighter budget than that, I'm making a Thrifty version. 

First, having  gotten 40 or so pounds of bones from Anatomical Chart, I was lucky enough to have more than enough bones to make the wings out of.

I started out by mounting two Thrifty pelvic bones to the scapulas of my Thrifty.  It made sense to me, since the first wing bone was going to be a femur anyways.  I'm not quite sure how I'm going to mount the wing to that part yet, but I'm working on it.  I guess it will just depend on how I decide to display him,

I rather like the effect from the front.  As you can see in the second photo (click on it for a larger view), I just screwed the pelvis directly to Thrifty's ribs.

Wings:

Each wing is made from:

1 Thrifty Femur

1 Thrifty Humerus

1 Bucky middle toe (the last 3 bones)

I attached the femur to the humerus by drilling a hole through the end of the humerus, and two slanted holes on the socket end of the femur, angling in to the middle.  Kinda hard to describe.  I had some great pictures I took while doing the work, but, alas, I can't find where I saved them.  In order to make a better fit, I used a dremel to widen the socket on the femur, and narrow the bone end on the humerus.  I then ran some bailing wire through the three holes to complete the join.

I used a similar method to attach the humerus to the Bucky toe assembly.  When I disassembled the Bucky foot, I left the last three bones connected, and used the extra wire sticking out of the end to connect it to the humerus by drilling a hole through the end of the humerus.

And, finally, here are the completed wing bones.  All told, I completed this portion of the project while watching Jeepers Creepers on pay-per-view, so it was pretty quick and easy.

Next step is to build the membrane for the wings.  I'll be sure to document that as I go along.