The pattern and yarn were part of a kit that Classic Elite marketed circa 2000. There were advertisements in Interweave Knits magazine.

From the ad:

Knitted with one strand solid-colored mohair and one strand variegated rayon chenille on size 10 needles, this adorable Fuzzy Toddler Cardigan and Beret from Classic Elite is a wonderful quick-knit summer travel project. Although some adults worry that a child will be bothered by mohair, it is actually lusciously soft in combination with the chenille. The yarn and pattern are sold together in a kit in size 2T (26-inch chest) in five different colorways for approximately $30 USD.