Adwords Suggestion Tool For Profitable Keywords
The narrower you make your list the more targeted, and likely to actually make a purchase, your visitors will be. Also, you'll have less competition for the term wooden homemade dog toys then you would for dog toys. True, you'll also have fewer searches but the searchers you do have will be very targeted and they won't cost you as much.
Don't get too caught up the estimated cost per click numbers. These are only estimates. The actual amount you, or anyone else, pays for a given keyword can vary significantly based on several factors such as the quality score Google assigns to your ad.
The more clicks your ad gets the higher the quality score you'll receive. If you have a high quality score your ad will show up higher in the results and you'll pay less for the keyword.
The Adwords suggestion keyword tool is a great place to start your keyword research for any type of online advertising you need to do. Just don't fall into the trap of believing that it's going to give you every result for any given keyword and make sure to keep in mind that the results you get will largely be estimates and not exact numbers.