Nerdy Groomsmen Gifts

Ok, need some advice on behalf of my FH, who is actually thinking ahead about gifts. We are all nerds - video game nerds mostly. Fh, myself, and one groomsmen are techies, but we don't want to do anything too techie. I'd like for it to be personalized, since I got my girls personalized earrings. But that leaves a plethora of options.



The best man and one groomsman drink, but I already told my FH that he should get something nicer for the best man, his brother. That aside, the other two groomsmen don't drink - one is my 20 year old bro. Most of the groomsmen articles are all about drinking. I'm still doing my research, but has anyone done or seen something nerdy that might actually be useful? I considered socks, but idk if that's too plain or simple. FH thought about watches which could also work. I almost bought them all remote controlled bb8s, but I think something that is nostalgically nerdy would be better. Help please!