Today, while I was in a local supermarket that caters mainly to a Hispanic clientele, I saw the liquid-like manteca that I mentioned previously. The containers were see-through containers that allowed me to see what looked like a layer of dark colored oil on top of a much more substantial white lard mass. As I shook the container, I saw that the oil and the lard started to combine. There were actually two brands at the store, one from a company called Chema Food Products out of Houston, and a house brand that exhibited the same characteristics as the Chema brand. Both were under $3, with the house brand being slightly cheaper. I didn't pay attention to the quantity but I would estimate that it was perhaps 20-something ounces.
I also saw the completely solid Armour manteca (lard), from small packages to 8-pound tubs, and also the Mrs. Tucker vegetable/lard product.