Pregnant costume ideas for an office setting?

Maggie • 25🌞Mommy to💙Luca 12/31/13💙 Logan 02/14/17💙
I helped arrange an employee engagement event week at work and on Tuesday we have costume day... I'm way behind because I was going to dress up as a jar of Prego sauce 😂 but I didn't get nearly as far with my costume this weekend as intended. Need some last minute ideas I can throw together by tomorrow night that could work with Target, Walmart, etc. for supplies haha. 
Edit: I'm 13 weeks if that helps :)