My day program is mostly all men. The website, http://www.activityconnection.com has wonderful ideas that includes a section for men's activities. Some things we do are discussion topics about careers, indoor golf (they love the golf game I made from the activity connection website), they actually enjoy cooking projects since many of them were the primary cook in the family, they like to be useful, so pairing them up with those who may function at a lower level can meet this need, we go on outings (i.e., museums, miniature golf, bowling, pool & pizza, etc.), Wii bowling, small group card games, military topics of discussion and YouTube videos of WWII aircraft, anything to do with old cars, trains, etc., jokes & riddles, current events & newspaper activities... I hope this helps as a start for you.
Also, the website, http://eldersong.com has resource books for programming for men.
I really enjoy programming for our men. They are so much fun!
Best wishes ~ Diana