Lighting equipment is one of those categories of gadgets that can cost as much as your budget allows. If you would prefer not to blow your life savings on nice kicker lights, you can build your own for less money than you think.
How-to blog Man Made DIY details how to build a simple highlight or kicker light using a simple flood light and some wiring. The project is relatively straightforward and should be doable for anyone with even minimal experience with wiring cables.
How to Build Your Own DIY Photography Light for Under $15.00 [Man Made DIY]