I have a half remembered image from the back cover of Climber magazine in the early '90s , it was either Camp climbing or Jack Wolfskin.
There's a guy with a MTB, a yellow bike trailer with a dog in it and climbing rope on the top.
I'd love to find an image of this as it stuck deeply enough that I travelled with my dog in a rig inspired.
Don't know why but to find it would bring joy