This is a really neat way to get the kids to quit bugging you about how bored they are. 

They will get tired of having to do chores and eventually just go and do something fun on their own. Either way it is a win win situation.

If you are looking for the inexpensive way, use pop sickle sticks and an empty coffee jar.

Have the kids help so that they can let you know what they feel is a reasonable chore. Maybe throw some incentive in there with some fun projects, not just chores. It helps them to look forward to something good coming out of the situation.