1] Abscond with a cart. Make a phony cardboard hitchhiking thumb and plant it beside a main highway. A note attached will say, help me hitch a ride across the country. Voila, 'Hitch Cart'.
2] Take your newly acquired cart on a trip around the world. Take pictures of it in front of the 'leaning tower of Pisa', on the London Bridge, in front of Buckingham Palace. Maybe in front of the St. Peter's in the Vatican, or even a few Kingdom Halls. Weeks later, one night, quietly place it back where you got it, along with pictures of it's 'great adventure'.