I'm pretty sure you could just do it in a food processor or blender.
I was at the home of a good friend of mine last night and she served me MANGO POPSICLES. They were so good! Basically it was just mango puree (I asked, she did it in her food processor but was sure a blender would work too) frozen in popsicle molds - so sweet and yummy, tasted like ice cream (but better!!)