Critter Carapaces, a 3-star Material that drop exclusively from Chromalisk-family monsters T2 and beyond, is needlessly rare. Chromalisks themselves aren't quite that common, but even having killed a couple hundred of them in T2 in the last couple of days, I've yet to get a single CC from one. Common market interest seems to be of a similar predicament - the demand for them exceeds the supply ten, maybe even twenty fold. So, I suggest that they be added to one of the token vendors(probably Primal Sparks), to make it more reasonable for anyone to want to make any of the numerous items they're required in a large amount for.

Another decent solution is either upping the drop rate, or lowering the amount of them required in the associated recipes.

This may come off as biased griping or something similar, I realize, but market supply:demand for this item really is horribly skewed, even for people clearing T3.