hello everyone i am new to the site. my neighbor showed me his purple laser tonight which really made me want to get one. i know only the basics about lasers and a little guidance would be greatly helpful. i am looking for a green or purple laser that either has or can have a prism attachment on it that can be adjusted. the one my neighbor had could be adjusted on the tip and it was extremely cool and trippy. i was trying to find one similar but am having some trouble finding one that has that capability. I know you can do it with a green or purple laser but the purple looks pretty wicked but would i be better off with a green one? i only say this because they seem most common... thankss happy 4th everyone!