Mack is a humanoid Muppet character who appeared in some of Jim Henson's early commercials produced in the mid-1960's. The puppet was re-worked from Onky, a blue live-hand humanoid character who first appeared in a series of ads for On-Cor Frozen Foods.
Claussen's and McGarry's ads with Kermit
Telephone ads with Suzy
Mack was paired with Suzy, a young girl character, in ads for C & P Telephone Co. of VA (1965-1968) and Southern Bell Telephone (1966-1968). In these ads, the roles were reversed, as Mack would get the short end of the deal, except in one commercial, where he did what Suzy told him to do.