Oh, No...Not Again!

Where is your Mousey? I asked my cat. No, not there where the curtain's pulled back. You left your Mouse Somewhere in the house… But 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.