You certainly may! This is my very own pattern, on my blog and published in Patternfish, Ravelry and Etsy!
Valentine Design Pattern
I used size 1(US) 2.25mm for this one and Empress Crochet Cotton, took 1200 yards or 3 balls.
I need to add that the pattern can be done with any size needle and any size/type fiber.
It's adjustable for the size you need!