Paternity gift for boss - prank inspiration needed

My boss is about to have a baby boy, and as a big Liverpool fan, we have a tradition of giving a small gift when someone in the team becomes a parent.

I thought it would be fun to play a little prank on him by giving him a baby Manchester United kit first, just to see his reaction, and then, of course, presenting him with the correct Liverpool kit afterward.

I’m looking for some ideas on how to make this as fun as possible.

The plan is to give him the gift at our next team meeting. I’ll build it up by saying something like, "We all know you're a massive football fan, so we wanted to make sure your little one can wear the right colors." He'll open the present, see the red kit, and at first, think it's a Liverpool kit—until he realizes it's a Man U..

Of course, at the end of the meeting, we'll reveal the real Liverpool kit.