This Ebonite commercial from 1968 shows numerous big name pro bowlers from that era, including the great Don Carter and the unforgettable peek-a-boo Ray Bluth. This Don Carter Ebonite bowling ball is the result of the agreement Carter signed with Ebonite, the first major sports endorsement deal in the television era.
If I remember correctly, this bowling ball would be popularly known as the Ebonite Gyro. The late great Don Carter continued to appear in all of Ebonite's commercials throughout the 1970s.
lsmftymf 2 months ago