Oh, No...Not Again!

Where is your Mousey? I asked my cat.No, not there where the curtain''s pulled back.You left your MouseSomewhere in the houseBut where? And I gave my Kitty a pat.What does a Mousey look like? you ask.Well, not like the gray ones that go skitter-skat.No, this one''s of thread,Made of green and of red,And its shape is a bit like a boy''s stocking cap.