Greasy Groove Inc., is a manufacturer od guitar pickguards and bass guitar pickguards. Our speciality in graphic pickguards as well as Celluloid plys plastics and speciality materials for guita pickguards. Rock Stars buy from us because we are unique in the world of pickguard designs. Browse through the largest selection of pickguard designs you will find anywhere. Since 1946, Leo Fender's Stratocasters, Telecasters and Precision & Jazz bass guitars have been at the core of rock'n roll and almost every music genre. .