Here is a short list of what my children will do when they are bored with toys...excessive amounts of toys.
1. Dump all toys in baskets or bins onto the floor and trip poor pregnant Mommy while I hop into the empty baskets and sail in my boats.
2. Dump as many clean towels I can find in the bathroom into the bathtub and turn on the water.
3. Make a jumprope out of toilet paper, or stuff as much toilet paper under my chin as possible until I have a billowy blouse, and then look up when I hear my name sternly called to see all the nice, clean toilet paper drop onto a wet bathroom floor.
4. Empty a jumbo size bag of shredded cheese all over the dining room floor, for Jasper, and then walk through it. That pretty candle holder needed some cheese dumped inside it too.
5. Try on as many underpants, pants, skirts, shirts, and dresses as I can find in my dresser, and then be unable to take it all off and put back into my dresser when I am done.
6. Remove all the couch cushions from both couches, at least 10 large cushions, and play bakery. The cushions are giant loaves of bread we are baking. Next we take turns jumping from the couch into the cushions. We are such a busy bakery this must happen at least 6 times every day.
7. Wash books in the sink with soap, toothpaste, and water.
8. Get rags wet and wipe mirrors
As you can see, children do not need a huge amount of toys in order to play, interact with each other, and have fun. They have imaginations, and in many instances they are just trying to be helpful and responsible.