Hi Michelle;
Neither of these recipes call for yogurt, but they both sound like something kids would really like. I have two Jello cookbooks and neither of them have a recipe for a popsicle using yogurt.

FROZEN FRUITY BARS

1 (4 serving) package jello, any flavor
1/2 cup sugar
2 cups boiling water
2 cups cold water

Dissolve jello and sugar in boiling water. Add cold water. Pour into popsicle molds or paper or plastic cups. Freeze until almost firm, about 2 hours. Insert wooden stick or spoon into each cup. Freeze until firm, about 8 hours or overnight. Makes 8 pops.

FROZEN PUDDING BARS

1 (4 serving) package jello instant pudding and pie filling, any flavor
2 cups cold milk

Prepare pudding mix with milk as directed on package.
Pour into popsicle molds or paper or plastic cups. Insert wooden stick or spoon into each cup. Freeze until firm, about 5 hours. Makes 6 pops.