Halloween party ideas for little ones

I love parties and I love Halloween. We've had a Halloween party for the past 2 years. We have a 3 yr old and 2 yr old so it hasn't been scary. It's been themed a pumpkin patch. First to decorate around the house I had everyone bring a decorated pumpkin, no prizes were given but everyone got a "best pumpkin using paint (or whatever was used)" picture for themselves. We do a treasure hunt and since the kids can't read we had them find colored shapes for the prizes around the house. I also have a little tykes slide which the kids took turns sliding a plastic pumpkin then themselves down the slide. We also did a freeze dance to halloween music since all the kids know how to do that. And we did a string pinata. We had finger foods for the parents and cupcakes for the kiddos. Usually we had about 15 kids at the party and it was FUN and safe environment for everyone!