Been collecting gas station stuff for several years. Mostly oil and automotive chemical cans, stuff that will fit on a shelf.
My big item is a Tokheim 39 (DX branded) gas pump that is the "night light" outside my attached garage. Fortunate enough to be able to build a detached garage for a shop and recently acquired a Bennett 3012 that is Clark branded that when rewired will go outside this garage. Notice parts are not as available for this as was for the Tokheim, but luckily it is mostly complete.