Hello Janet and Steven,
I did it, I helped make a Parade of Roses float. They really do it, use individual petals, seeds. You can't begin to appreciate how much labor goes into it unless you see it first hand!
I also made it into their "History" album on the City of Burbank float site. Take a look, that's me on the right!
p.s. The potato wall wasn't one I worked on but I knew you'd get a kick out of seeing it.
Margot's in blue, standing on the right.