I made one a couple days ago and damn it turned out good! It looks reallllllllllllly creepy just the clear glue color. Just be SURE to use PLENTY of hot GLUE. I painted mine to look like a rotting zombish hand.
That is pretty cool for another alternative. I just recently did the old bic pen idea for the hand on my neck massage zombie and they worked great. There are so many different ways to build all this stuff, with a good imagination and a willingness to never quit, you can acompolish anything.