They were nothing more than a sticker kit.
The promotional material states:

Introducing Water Splash
or
Introducing Super Chicken

On 1971 HQ Series Kingswood Ute

"Order a 'Water Splash or Super Chicken' decal on your next Holden Ute or Van from your nearest Holden Dealer"

Fact is the same 1971 promotional Ute had the Water Splash on the drivers side and the Super Chicken on the passenger side. This Ute also used different wheels on each side to show a different look.

Later multiple Vans would be done with the Super Chicken decals that toured the car shows with Holden. One of which was further modified into "De-Van"