And no worries on the one Jeremy referred to from last year - http://www.threadless.com/submission/347228/Precious_Power_Up - theirs was totally different.
Anyway, I had already tried a mashup back in 2010. Mine was different too. It's a natural thing to mash these two up, and you've done it beautifully and in a way I've never seen before. well done
Not calling it a rip but I did this idea already and was sold at The Yetee and still for sale at my redbubble store. And it was called My Preciouses.
http://theyetee.com/index.php?shirtid=Preciouses
http://www.redbubble.com/people/midgerock/works/7525468-my-preciouses
About my design