Travel with my pen-sized laser pointer every week.
During summer travel with a key-chain sized pointed on those keys.
NEVER had any TSA issues. Never even been questioned about it .. tho I do carry a lot of pens ..they never have taken the pointer out and looked at it.
Also do a fair amount of international travel and again never had a proplem there. FRA security in November was the most grueling I have ever seen and they did not even notice the laser pointer.