In a pan heat over medium heat, the butter. Once melted you will pour in your marshmallows and stir often.
Once the marshmallows have melted, remove from heat, add in cereal, vanilla, and salt. Stir well.
Pour into a greased 9x13 pan, and allow them to cool down. Press them down so they become firm.
Once cooled, grease your bear mold lightly. Then grab a handful of Krispies treat, and press into the mold. Once well pressed, gently remove the treat, and repeat.