RT case back on a Beater

The new RT case-back on a custom Raw Beater, it has to be one of my more obscure designs. I cannot even remember how it came together. I suspect I was fixated on the walrus and everything else was built around him. Quite often in design you spend so long on something it just has to be used because so much time has been invested. I not sure this was the case but I do see this design as something I did not do, which is cool because I love it and it surprises me every time I see it.