Dalkon rhymes with:
falcon, balkan, bialkin, bohlken, develcon, engelken, falcon, faulcon, mcquilkin, milken, silken, vulcan, wendelken, wilken
Dalkon sounds like:
delcine, delusion, dhlakama, dilson, dolgen, dolgin, dollison, dolson, dualism, dulciana, dulcine, dulcinea