Not a dumb idea at all! Yes, little boys can wear them too. I've seen others post about that.
Tink wore them too - I just cut a little tail hole for her and it was so cute and worked very well. My vet also thought it was a great idea.
Glad Stella is doing well and hope she heals quickly and isn't is amazing that they want to jump off the furniture after having their insides rearranged!