Not terribly exotic, but I got all of a well loaded trolley onto the Trailer a short while ago.
Click image for bigness. Extra bonus points for not using a single throwaway bag. Everything was either just loaded in loose, or in two reusable shopping bags (you can see one orange towards the back of the trailer).
There was a lot of liquid, in various contains, a dozen bottles of beer, 4L of detergent, 26 cans of assorted drinks, 8 bottles of Lassi, a couple of large bottles of Innocent fruit juice, 4 pints of milk etc. This made for an interesting ride, because as you pulled away the liquid resisted, and then as it caught up, it pushed the entire bike forward. Initially I thought there was a fault with the bearings, and it was periodically rubbing, but eventually I realised it was just the mass of liquid, which was probably two thirds of the load. I really wouldn't want to carry a large barrel of liquid on the trailer, it would be a truly odd sensation.