The Warforge Miniature Modelling and Conversion

Fisticuffs!

So I have an unhealthy attachment to toy stores. I go in there and root around for stuff that could potentially be used for Warhammer conversions. Today I came across an unusual toy that I thought had a bit of potential: a megaman action figure. Of course, it's not like megaman that I remember from all those years ago, as he seems to have been given a new and trendy facelift for the younger generation, but I won't get into that. I picked the model up because it had a fist looking thing on it that looked absolutely delicious for use on my giant warboss.

Unfortunately I overestimated the boss's size a bit, so the fist is too ludicrously huge to be of any use on him, despite what my warboss thinks.

However, the general shape is pretty much perfect for what I have in mind for the arm, so I wanted to scratchbuild myself one following the same general profile (with some more obviously orky detailing).

With the wonders of forced perspective, I'm able to 'scale down' the arm bit a tad to the size I think is more appropriate for the warboss:

That look about right? It looks pretty easy to build, to be honest, but for one small detail: I don't have the styrene for it. My largest styrene tubes go up to 1/2" diameter, and I need bigger stuff to do this arm properly. I've been searching around, but I can't seem to find a source of styrene tubing that will provide me with larger diameters. There's PVC pipe, but that's too big and too thick (like 1/4" around the diameter of the tube!).

I may go out on a scavenger hunt in town, looking for pens that are about the right size to be cut up, because I can't think of any other way to get the plastic I need for this.