I've got maybe a dozen or so 10 gauge RMC hulls that I bought used and won't chamber in my Spanish double.

Is there any relatively easy way to resize them that doesn't include the use of expensive tools like lathes or other such machinery?

Worse comes to worse I could always make a couple of sets of wind chimes with them.

I have become addicted to English hammered shotguns to the detriment of my wallet.