Eight prototypes for the Trump administration's wall now stand near the US-Mexico border in San Diego, California.

They were chosen as finalists from hundreds of submissions from architects, developers, and construction companies this spring.

Not all border wall bids were serious, though. Mexican architects from Estudio 3.14, a design firm based in Guadalajara, imagined a hot pink border that stretches 1,954 miles, called the "Prison-Wall."

The renderings are meant to show the impracticality of building the wall and serve as a form of protest, designer Norberto Miranda told Business Insider. He said the border most likely wouldn't foster positive relations with Mexico, and the mountainous terrain would make construction difficult.

As many others have pointed out, the wall would also be expensive, and Mexican President Enrique Peña Nieto has said his country would never pay for it.

CNBC's Kate Drew wrote that the construction could cost the US government $15 billion to $25 billion. Maintenance and hiring 21,000 border-patrol agents could cost an additional $2.1 billion a year, according to CNBC and an analysis by Politico. (Trump has said Mexico would pay for the wall through taxes or trade.) Estudio 3.14 designed the renderings around these estimates.

If built, the wall would become one of the largest architectural projects in modern American history.

Here's what Estudio 3.14's renderings suggest the barrier could look like: