A c clamp with a steel measuring spoon for one side, on the other side I have scavenged a range of D shaped stones that (depending on the shape of the punch I am after) I tape on.
The measuring spoon has a steel ring welded to the bottom of it, this ring slips onto the c clamp and holds the spoon in place. I have a number of spoons of different shapes and sizes.
A long arm door hinge with a threaded bolt with pipe on it so I can wind a nut from the inside to expand the hinge (this is really good to get deep into the toe cap).
I also use 4 blocks of wood to make a frame around the boot and then use 2 c clamps to do stretches.
I'll be using everything next week to punch, stretch and reshape my hyperlites, it takes me around 2 weeks to do both boots by the time I have reshaped the toe, stretched the forefoot and punched / reshaped the heel.