My son's class made "ice cream sodas" for a Mother's day gift a couple of years ago. Plastic soda glasses, filled partway with pastel colored bath salts. On top, for the foam, was one of those scrubbies in the same pastel shade. They applied a red pom pom with double sided tape to to the scrubbie and stuck a straw in it. So cute!!!
On another note, I did an "ice cream social for my twin daughter's 9th party. It was so much fun! We did do pin the cherry on the sundae, and had a contest to see who could eat one scoop of vanilla ice cream the fastest without using their hands (in a bowl). For goodie bags, I bought small canvas totes and a couple of days before I made a paste of flour and water and painted an ice cream cone with that on the front of the tote. When the girls got to the party, they took their totes into the yard, and used spray fabric paint to color their bags. Once the paint dried, they picked the flour paste off. It was a bit time consuming, but we had music playing and they had a good time.
Inside the goody bags, each girl got an ice cream scoop, a little bottle of sprinkles an ice cream cone cookie cutter, and some stickers. It turned out really cute.
We set up an ice cream bar with about 15 different kinds of ice cream, and every kind of topping you could imagine. They were allowed to make a sundae with everything they wanted on it. I think they had more fun making the sundaes than eating them. Not many of them finished their ice cream. We did have a cake, but no one wanted any, so we just used it for blowing out candles, and then it just sat there. Poor little unwanted cake!
This was a lot of fun, and I still have girls talking about it.