Football toy chest! I had one of those. I remember climbing inside it -- being able to fit inside it even. I remember, when I was older, trying to climb inside but backing out because I was afraid of getting stuck in there (and trying to imagine how they would cut me out of the thing, that kind of gives me the heebie jeebies even now).
Lol, yeah, I think everyone that had one of those must have climbed in at some point. Me and my cousins used to put the lid on and roll each other around probably giving us brain damage in the process. I think the last time I got in was after one time when my older cousins were torturing me by sitting on the lid and not letting me out.