Fellow fan-site Venture Bros. Blog has a closer look at the Rusty and Jonas Sr. set
that will be sold at San Diego and New York Comic-Cons (as well as online for everyone else after NYCC). You'll get to see shots of the lunch box tote which indeed does attempt to replicate the one seen in "Escape to the House of Mummies, Part II"
and includes awesome art by Venture Bros.
veterans Stephen DeStefano
and Liz Artinian
and was commissioned specifically for this project.