Incredibly stupid question about a misprinted shirt I saw at the Sears Tower gift shop...

My girlfriend and I did a Chicago trip back in September just to get away for a few days, and while we were there, we did some of the touristy stuff. At one point, we went up to the sky deck of the Sears Tower. We spent some time looking at the gift shop on our way down, and my girlfriend found a shirt with a hot dog sitting in the stands at a baseball game. It was misprinted so the hot dog's bun was green and the seats were yellow (the rest of the shirts had the correct color pattern). For whatever reason, this cracked her up and it turned into an inside joke on our trip. When we got back home a few days later, she made a comment about regretting not buying it, so maybe a month later, I had the idea to call the shop and see if there were any misprints left (I think we saw three or four of them). The guy on the phone was nice, and said they did have one but it was extra small, which isn't my gf's size. Out of curiosity, I called again about a week ago, and they were really dodgy about it, like they didn't want to admit there were ever any misprinted shirts so I thanked them and hung up. I'm curious if anyone ever saw these or knows if they are still around or where I could find one. Luckily we got a picture so I can post it here.