I don't make a whole lot of masculine cards, so when I do I tend to put it in my keywords- here's what comes up: Cook22 ~ masculine cards
I see quite a lot of motorbikes, but also wild animals and lighthouse/sea themes. I like to use distressing techniques, no ribbon because DH doesn't like it. Brads or jumbo eyelets are good, though! And I like to use embossed foil, it adds a great guy look! Maybe I've just inspired myself for my FIL's upcoming birthday, LOL.