Freeze Branding Cattle Container?

what kind of container do i need to put dry ice and methyl (100 percent alchol) in for freeze branding that wont melt or shatter rember the container goes to -77c and i want it to be insulated to keep the tempreature at or around -77c. also i dont want the irons to get damaged or anything to melt to them while they are submerged in the sololution ? any one got any idea what i can use?