1968 appears to have been a banner year for Mattel, at least as far as their doll lines go. About three million dolls seem to have been introduced in the vast and eclectic Kiddle line (see my related articles on the subject), Barbie and her cosmopolitan friends were as popular as ever, even beginning to introduce some flower-power "hippy" variations into the group, as well as "tan" versions of our "perfect plastic playmates." The "Matt Mason" line flooded the market with collectible bendy astronauts (see my article on the "Outer Space Men" for more info on the subject).
But for toy kits there was probably very little as unique as the puppet show play set Mattel released that year. For one reasonable price (around $5.00 apparently) you got a complete "Komedy Theater," two performers and their related accoutrements. You could put on shows for your friends or, more likely, run the shows over and over and over for yourself, all day and night!
Ladies and gentlemen, boys and girls, introducing those two Krack-up Kiddle Komedy Komedians and their in-Kredible Kiddle Theater!