Use your hive tool (or a knife) to cut a triangle of comb out around the queen cell, with the wide part of the triangle at the top and the point at the bottom. This triangle should be about 2 inches on a side. Cut a similar hole in the recipient comb or just squish the combs together in a sticky honey/comb mash-up. This is easier with fresh white wax on a foundationless frame but it will work on just about any comb.