I've been doing quite a few of these lately, and this is the easiest and sturdiest way I have found. Maybe not new to some, but hopefully it makes it easier for some. No mess and takes less than 5 minutes to do.
I posted this a while back, but moved the pictures on Photobucket and screwed the whole tutorial up. Since then I have come across an even easier and faster way, so here it is:
Go to Home Depot and buy these items. You only need one of each for each Skull mount

You will also need an 11/32 drill bit, for going through the skull.

Mark the bottom of the skull with a Sharpie, about an inch lower than the brain cavity opening. This is where you will drill the hole for the "nut" to placed in.

Next drill a hole with the 11/32 drill bit, make sure you go through to the inside of the brain cavity

After drilling the hole place the "nut" on the end of an allen key that fits inside of it. Hard to explain but it is self explanatory when you have it in your hand. After placing the "nut" on the allen Key, put a little 2 part epoxy or equivalent glue around the threads, this will prevent it from moving later.


Now slowly start the "nut" into the pre- drilled hole, it will turn pretty easy as the glue works as a lubricant. Snug it all the way down and wipe the excess glue off of the edges and you are ready to move on.
Starting the "nut"

All snugged down

Next take the sharpie and mark the panel you are going to use, in this case it is a Cedar Pedestal from Darren Mohler who is on this site as well. Line it up and mark it, making sure it is centered.

After drilling with the bolt through

Start by hand turning the bolt into the pre mounted "nut", then finish up with an allen key, making sure it is snugged tight and that the skull is centered on the pedestal or whatever panel you are using.


Here is the finished product, looks pretty good and is fast as hell to do.


I now use this method, it is very strong and foolproof, the threads lock the "nut" into place and the epoxy holds it tight. The bolt is brown in color and blends well and looks very professional. You can do a whole bunch at a time with this method, as I put the "nut" on every skull regardless if the customer is buying a pedestal from me or not. This way it is ready for them for whatever method or panel they choose to use.
As you can tell, I have to restain the antler bases on this one, which is usually done before mounting on the pedestal
Just another way of doing things, thanks for all I've learned on here from others!
Charlie