Random find on eBay, custom G4 Pinkie in Pinkamena mode. Can only be yours for $12 USD dollars, but its on eBay so you know someone will snag it .001 second before the close. Taken from the auction:
For sale is a customised // modified G4 (Friendship is Magic) Pinkie Pie.
She has been modded into her crazy alter ego “Pinkamena” from the episode Party of One.
Her eyes have been very carefully repainted with Matisse acrylics and sealed with Jo Sonja’s
gloss varnish water resistant sealer.
Her hair has been cut and straightened.
She will be able to stand light play, but she was customised to to be a display piece only.