A true side note here, I got tired of using an old hacksaw blade to cut the tabs on my projects so I whipped out a small handle to turn a jig saw blade into a miniature hand saw.  This works with t-handle blades and they just snap in and out with a small bit of force.  Should also work nice for pumpkin carving as well...

You can grab the file from thingiverse if you are interested in it.