The cat plushie in Bloxburg is called the Fabric Kitten. It’s listed as a decoration in Build Mode and costs $200 under the Baby & Kids tab, in Soft Toys.

Quick note

People often say “cat plushie” casually, but the in-game item name is Fabric Kitten.

In-game location

  • Build Mode
  • Baby & Kids tab
  • Soft Toys section

Cost

  • $200

If you were asking about a different cat item, the exact name may vary, but for the plushie most players mean, Fabric Kitten is the one.