Simple Trees (here, the leaves are just boxes with their vertices manipulated to make them look like trees. The polygon count on models like these are very less.
Models in a playground - entrance, steel cages, a ticket booth etc. You bet these are some 'heavy models' when it comes to detail.
A portable toilet.. dum
This is a stupid example of how you can texture a bitmap onto models toy have created to make them appear more life-like