Have you solar powered rubbish bin
I came across this very interesting toy in my newsletter: the BigBelly solar powered trash can.You must be wondering, why would a rubbish bin need solar energy? To microwave the rubbish inside? Nah, The solar panel powers a compactor, which will compact (ie, squeeze) the rubbish inside the bin. It is said that this bin can hold 5 times as much rubbish as an ordinary rubbish bin. BigBelly eh?
This high tech rubbish bin also has some not-so-obvious benefits. Imagine it can hold 5 times as much rubbish, that means the cleaner only needs to empty the bin 5 times less frequent than before. This definitely saves manhour. Now, the manufacturer claims that it can save the rubbish truck's trip by 80%, which means saving on fuel, reducing emission and easing the road congestion. Less smelly rubbish trucks on the road.
The way I see some roadside rubbish bin overflowing, I think Singapore needs some of this toys.
Here is their website.
Singlish | 
A couple of questions directed at no one in particular(pardon me if it sounds noobish),
1)Does this work at night?
2)What are the precautions to prevent it from being stolen?
3)Is it expensive to make?
If the answers are satisfactory, I think this is would be a rather innovative and useful "toy" to make.