It’s possible this is the most intriguing food-as-art I’ve seen yet!  San Francisco artist Liz Hickok sculpts, molds and casts scale models of urban city landscapes using Jell-O.
There’s a lengthy process to get these installations ready for their eventual decay.  She tells on her website that the installations can become quite uncontrollable and as you can imagine the Jello-O is susceptible to temperature and movement so the sculptures are often done in her studio.

North Adams in Jell-O

Scottsdale in Jell-O

Wilmington in Jell-o

The White House in Jell-o

San Francisco in Jell-O