[Derpy McBlueEyes]

(I remember randomly finding it several years ago and thinking it was pretty cool, but I definitely couldn't afford it back then and then yesterday, it just popped into my head again, so I had to see if it still existed. I also found a rayon/plant fiber "yarn" that has the sunlight/uv color shift, but unfortunately it's not a great option for knitting.)

"Teehee, hi!" Derpy waddles over and clings to your ankle.