When a man betrothes a woman he must pay a bride-price, which need
not be in cash but can be in goods. However, the mishna teaches
that several possible payments are off limits: he cannot pay with
fruit that is forbidden to eat (orlah), nor with an animal destined for
sacrifice, nor with the ox condemned to be killed for goring, nor
with meat seethed in milk, among others. If he pays with these,
he is not betrothed. However, if he sells any of those
items and betrothes her with the money gained from the sale, then
he is betrothed. (56b)
Some of these (like the ox) are things I would have expected to be
in the category of "you may derive no benefit from these". (The
g'mara argues about this with respect to the meat/milk mixture on
57, today's daf.) I guess benefit ok but you have to have one level
of indirection in the case of marriage contracts?
(I'm not sure where he would get buyers for some of these, but
that is not the mishna's concern here.)