You do not have to sacrifice a whole female to make seed, since brushing pollen onto a single lower branch and bagging it for a day leaves the rest of the plant unseeded. It is the approach most small growers end up with once they realise a full plant produces more seed than they can use. The step by step for bagging, timing and washing off stray pollen is covered at https://breederregularseeds.com in useful detail. Just label that branch clearly before you forget which one it was.
