Sure! Pinkie Pie can be done. She's such a cutie as a baby anyway, what with her poofball hair. Do you know if you want to make filly Spitfire or filly Daring Do? Because I can't choose between them. x) If you choose to do Daring I'll make something extra with Pinkie to compensate for the extra work.
I seriously can't decide. xD So I flipped a coin! lol! I got tails- Daring Do. (If you don't mind doing all that work!) I'll start on your Pinkie plus a surprise extra plush later this week once I finish my current one. ^^