@Scrbblchick -- Strawberry pretzel salad is probably my husband's favorite dessert. As long as the pretzels stay crisp, it's awesome.
I remember my mom making something called "Seafoam salad" when I was a kid. I know she used lime gelatin and maybe sour cream or something else to make it creamy and foamy. It was light green when it came out of the mold, and we loved it. I don't remember the exact ingredients except I know she used chopped pecans in it.
I'm sure there are numerous recipes online for it. Dessert salads have kind of gone out of fashion which is a shame because there really are some good recipes out there.