Backpack - Backpack - Twelve South
http://twelvesouth.com/products/backpack/

could one of these be made for a dell stand?

BackPack is a sturdy, sleek looking shelf designed exclusively to attach to the back of iMac and Apple Cinema Displays.

“BackPack is a sturdy, sleek looking shelf designed exclusively to attach to the back of iMac and Apple Cinema Displays.”

A shelve for behind a cinema display or iMac. Very clever.