When my oldest shot his first last year it was a nice 7 point but not nice enough to mount so I used one of those steel skulls and made him a nice mount for a keepsake. A doe presents a bit more of a challenge. I told him that I could have the butt mounted and he could use it to hold his toothbrush ; He declined.
I came up with something simple for him and it may be the first official .450 Bushmaster picture frame. I had the frame from Christmas so I polished some .450 brass and placed them around the frame.