I just used my ninja blender to puree all kinds of things for my daughter. I feel like it saved money as opposed to buying a separate "baby blender". I did buy these little storage containers though and loved them! They stack nice in the freezer too. I also used ice cube trays to freeze individual portions.
Get you a baby bullet, it comes with the blender and all the stuff to get you started. Even a food guide. I have one and I love it.