They are called "laptop cooling pads" and you can find them in many places, including Amazon.
The highest rated one for 17" laptops (like that Toshiba) at Amazon is the Cooler Master NotePal X-Slim, and it is not even $20.
http

/www.amazon.com/Cooler-Master-NotePal-Ultra-Slim-R9-NBC-XSLI-GP/dp/B005C31HC0/
It only uses one fan, but gets power from USB and has a pass through port. If you need a lot of serious airflow, its bigger brother is the Cooler Master NotePal X3, which is also available through Amazon (and others) for $40.
http

/www.amazon.com/Cooler-Master-NotePal-Cooling-R9-NBC-NPX3-GP/dp/B0079T2KHG/
The X3 uses a bigger fan with a set of blue LEDs and has a speed controller.
Good luck!