Ding Dong is an unincorporated community in Central Texas. It is situated on the Lampasas River, eight miles south of Killeen in southwestern Bell County.
Ding Dong was named when two early settlers in the town, Zulis Bell
and Bert Bell, opened a store and hired the artist Cohn Cohen Hoover to
make a sign for it. Hoover painted a sign with two bells on it. Inside
the bells, Hoover painted the initials of the Bell brothers. Underneath
one bell he painted the word "Ding" and the word "Dong" under the other
bell. Over the years, because of this sign, this community became known
as Ding Dong. It has frequently been noted on lists of unusual place names.
Source: wikipedia.com