This year I had so many varieties in mind that I began wondering if I'd overheat my ice cream mixer, ice or not. Someone mentioned an ice cream recipe that could be made in a casserole pan in the freezer. A google search produced several likely ideas. The recipe below is what I ended up making. I based it pretty much on this video.
Preparation Time: 15 minutes, plus 3-4 hours for freezing
1 large tub of whipped topping (32 oz)
1 can sweetened condensed milk (14 oz)
8 ripe mangoes, skinned and seed removed
1 can pineapple chunks (14 oz) with juice drained off
In a large bowl, combine pureed fruit with sweetened condensed milk. Add whipped topping. Whisk together by hand with a wire whisk until well combined. Pour into a 9x12 pan.
Dice the mango that you set aside and sprinkle it over the top of the mixture. Cover and freeze for 3-4 hours or until firm. You may stir once half way through the freezing time, but it is not essential.