Hand delivered invitations

Do you think that hand delivery some wedding invitations is tacky?
I have coworkers that I see everyday that I’m inviting, I don’t see a point in sending them the invitation when I can just hand it to them. Same with family. My parents are obviously coming as they are part of planning and all that. My mom wants an invitation to put the the fridge and as a keepsake but I don’t think I should mail it to her. The only other person I’d hand deliver to is my MOH and my aunt. I have to a few address from my aunt so wouldn’t it just make sense for then I go get those to give her her invitation?