Step 1: Materials to Have Handy
a small rod as an anchor, I used a metal one that would fit inside one of the pipes (or use two if you want to be on the safe side. I do not know whether there if a safe side to a zombie apocalypse...)
Hot glue gun
Hot air gun
LEDs as mood light
Step 2: Make the Hand
First, I sorted through the larger bones and picked eight for the fingers. I aligned them as you can see on the images (sorry I did not take more), in such a fashion that they formed a kind of joint, that is that the broard end of one bone would butt up well against the other and retain at least two points of contact when I bent it into the position I wanted. It made sense to me, even if I cannot explain it properly.
I made the fingers with increasing angles so they would not look too much alike.
For the thumb I took one bone and cut a piece out to make it shorter - my supplies were running low at that time.
After gluing the fingers tigether I started making a kind of "raft" from bones for the palm. I call it a raft because it kinda reminds me of tieing together logs to make a makeshift, well, raft. I tried to find bones that fit into each other's curvature, but I quickly ended up with a curve that would not do for the sides of a palm, so I had to find bones that would fit into the curve without adding to it. Once again, I feel like it make smore sense in my head than written out.
Finally, I Glued the fingers to the palm, repeatedly making a "up from the grave"-gesture myself to see what I wanted it to look like. At least when I do it, all my fingers are bent, with the index finger being closest to straight and each finger subsequently more bent.
Step 3: Make the Arm
First, I sanded down the tube to remove the writing it had on it.
Using a hot air gun, I then gently bent them into shape, which is to say I heated them up and worked them on a big dowel (like an anvil, but without a hammer, mind) just a little so they would not look too round. I made sure that the metal rod would still fit at least halfway into one of the pipes, though (or both if that is your choice).
I also tried to flare the upper end to make it easier to attach the hand, but with hot plastic, it did not work out as pleasantly as I had expected, so I canned the idea. Also, It turned out not to be necessary at all.
Then I glued them together using hot glue - yes, not the best choice, but I did not feel like experimenting, and besides, hot glue may not always be the solution, but it is always a solution.
Step 4: Arm the Hand
Step 5: Spray It
Step 6: Put the Hand Down
So basically, you would be done. Admire your work, just do not make it too obvious.
But there might be more to do.
Step 7: Further Dressing
One idea that I feel would be easily implementet are LEDs as mood light. The idea is to use "throwies" to light up the hand from below. You would not even have to throw them.
I even think that taking a LED, sticking a button battery between it's legs and wrapping the thing in duct tape would work, at least if you only needed them for a night or so. Half-burried in the soil and hidden behind lumps so people would not see the actual light source, they are bound to set off the hand. I would recommend using red and yellow colors, but green might work well, too, and yes, go for blue if you are so inclined.
That is about how far I got, in my mind and in my front yard, for this year.
A cool effect might be aciheved using UV-LEDs and painting the hand with UV-colors - as blood or as demonic runes...
Step 8: Crazy Hand Talk
For this project, here is what I envision:
Amechanism to actually raise the hand. It would come up from a tube large enough to hide it in, using a string and a motor to pull it up, preferrably fast. The hand would be able to bend upwards for it to vanish, and if I were to do this, I would try to get hold of a proper skeleton arm, made from plastic if possible for weight reasons. Paired with a motion sensor, I would have the arm come up whenever someone walks by.
In addition, I would wire the lighting to a microcontroller so that it would change, fade in and out, and incorporate some of the ideas for UV light in the previous step. I imagine that after the hand came up, after a few seconds the UV would fade in, making the hitherto invisible marks on the bones glow.
The only problem I see is that dirt would get inside the tube if you wanted to hide it, so I am thinking about using some kind of fabric, to make a patch of fake earth where the hand can push through again and again.
Well, so much for that.
I hope you enjoyed this instructable, and have fun with it!