Park Bench For Cake

I am having a garden themed wedding at the beginning of May, 2005. My wedding cake has 5 tiers and in between 2 of the tiers their is a space that I want to put a bride and groom on a park bench, sort of like in a gazebo. But, I am having no luck finding a park bench that is the right size. Typical doll house furniture is to small. The size I`m looking for would fit a Barbie. If anyone could send me any information on where I could find one I would really appreciate it. Thank you!!
Mindy