@letyyyy, I went with a color scheme rather than a typical theme. I did grey. Light blue. And navy! I have 1 table cloth in my color scheme with elephants. But that's it! I'll share a few pictures of my invites and some stuff I have for the shower already.
It's hard to be original when it comes to themes, but I chose to go with the colors navy blue, sky blue, sea green and gray and do like a nautical/whale theme. It's a little overrated, but oh well lol. What kind of stuff are you or the daddy into? I just looked on Pinterest to find something I liked, but I saw a bunch of different stuff. There's safari, dinosaurs, hunting/camo, vintage planes, monsters, cars, superheroes, puppies, space/planets, mustaches, the list goes on and on lol.