What are your favorite repurposed containers?
EDIT: Now keeping a spreadsheet. If you submit volume and weight (oz, please) I'll add yours. The "efficiency score" is simply oz capacity divided by oz weight. Tracking lidded/capped containers only.
If I own one of these containers, I'm using my Pelouze PE10 scale for weights (two-tenths resolution) and measuring capacities with ounce-graduated measuring cups. If I don't have access, I'm simply using whatever weights and capacities are reported in this thread, and rounding up to the nearest tenth. Not gilt-edged accuracy, but gets you within range.
A few (mostly) repurposed containers, for visual effect. L to R: SoBe flavored water bottle, Grease Pot in cozy, Gatorade powdered drink container, peanut butter jar, Campbell Soup In A Cup, Old-school quart Nalgene, Boyardee pasta cup, 1L Platy (crashing the party, doesn't belong here!), Ziploc 1-cup SmartSnaps.
Dang it, just noticed I misspelled "repurposed" in the headline. Tried to fix it, the fix isn't taking.