Couldn't Resist

I have been working all weekend. Agh! What a waste of a beautiful weekend. It could have been worse though... part of what I was working on involved shopping! Okay, not really fun shopping - I was shopping for science activity supplies - but it was shopping! As I stopped at what felt like the 234th place, my lagging enthusiasm got a boost. In the cluttered rack of baby clothes (okay I strayed a little from what I was supposed to be looking for), I found this for five bucks. Have a look at the back - this sealed the deal...

 
Just needs a cute little bum to fit inside!