Help on gender reveal

So my partner and I found out that I was 5 weeks pregnant back in August. He works offshore 2 weeks at a time, so it’s super hard to plan appointments around both of our work schedules. Well, I will be able to find out the gender in 3 weeks, which means he’ll be back at work and he wants me to surprise him with the gender of our baby. But I have no idea how or what to do. Keep in mind this is something that I’m doing just for him, neither one of us, is really a big celebration kind of person. I want to do something really cute for him since we are both first time parents. Any suggestions ladies????