A lot of the complicated light painting you see will not be done with off the shelf light painting tools, most will have been done with tools that have been made up for purpose sometimes from components but quite often from pre made items...small sets of battery powered LED's can be wonderful bits of kit for all sorts of tools
What type of things would you like to create?
Lasers can damage your sensor but only rarely from my experience, but that said if your concerned don't point a laser at your sensor