Maybe your Petco ran out of the small? I was able to pick up a small, but even they are a bit big for Mumble's tiny head. I'm thinking about taking in the elastic a bit. Might work for Wally as well?
Not sure, they weren't even out. One of the clerks just give me one because she was opening a big bag of them and I was checking out. She said "He's sooooooooo cute" and handed me a set of ears.
I'm going to think of something, and my mom has made it a mission to figure it out LOL. I told her I had put a few vids of him doing stuff on youtube and sharing them here. Between us, we'll probably get those ears to stay on somehow! XD
She was FLOORED that he was one of the "big font" search terms on this site. She was like "Wally has fans!" LOL