Well, I finally had to give in to all the comments such as "there's no room in the freezer", "when are you going to sort them out" and "I am going to turn the freezer off if you don't do something about those d*mned heads".
So on Sunday I had (for me) a mammoth head boiling session, removing four heads from the freezer plus the one I'd shot that morning, setting the boiling pan on the gas ring and digging out the roe head cutting jig.
Here's the result:
The one on the right is the buck from Sunday morning.
Those of you paying attention will have noticed that there are only four heads shown - the fifth was another antlered doe but with only bumps rather than actual antlers, so that one I decided to ditch. You'll also have seen that the jig needs a bit of adjustment
The antlered doe I will keep for my next talk on deer, the others will probably re-appear as walking sticks, key-rings or somesuch.