quality an cheap price don't go well with each other...... i recommend laserGlow https://www.laserglow.com/GAN a bit above your price range ($39) but worth your money.
Check out LaserChick sale thread or build your own......
and add your location, so member from around your area can help you.
and introduce yourself in the welcome section....
Modding a laser is bad. Please don't encourage people to do that.
The legal limit for public use is 5mW. what did you buy? good lasers cost more than $30 generally, and many cheapies are already over what is allowed and fairly dangerous.