I hosted a Winter Wonderland party in March a couple years ago for my church's play group. The invitations were riddled with snowflakes and read:  "A Last Hoorah for Winter!  Come and enjoy all the fun of outdoor winter play with the all the warmth and comfort of the indoors." The party was held in the multi-purpose room at the church with festive wintry/Christmas music playing in the background, and the various activities were set up so the children could move from one to the other( and back again) at their own choosing. The activities were as follows: 1)Make your own snowman -- using styrofoam balls, small black buttons(for nose, mouth, and buttons), orange chenille wire(for the nose), felt(for the scarf) and black construction paper(for stovepipe hat) the kids were able to make their own snowman. 2) Wagon ride through the snow -- I made snowflakes using different size doilies attached to different lengths of white yarn and hung them from the ceiling in a curvy path, so they would brush the children's faces as they rode the wagon on the path(pulled by their moms, of course).            3)Sledding -- I created an incline by securely propping a collapsed table on an angle with another table laying flat at the end. I made a sled using a very sturdy cardboard box and some waxpaper to lessen the friction.  The construction of this has to be well thought through and tested to ensure safety.  The children were able to "sled" with a little push from Mom.   4)  Snowball making -- Using vanilla ice cream, I made "snowballs" ahead of time and placed in the freezer to harden and maintain their shape.  I placed a variety of different toppings on the table, such as sprinkles, nuts, mini-chocolate chips, and coconut, and allowed the children to put whatever toppings they wanted on a small plate.  They could, then, roll their "snowballs" around in the toppings, eat and enjoy! Hot chocolate and popcorn were also provided for them to enjoy. 5)  Snowpit -- This was the highlight of the party! I filled my son's 8-foot long pool with packing peanuts, so the kids could jump around and go wild -- which they did! WARNING: Have a shop vac available for clean-up!!!  The peanuts break into small pieces and stick to everything!!!  The mess was incredible, but the kids had so much fun it was all worth it!  6)  Quilt squares -- Each of the children and their moms made quilt squares.  The children's had their handprints, name and age.  The mom's wrote either a word of advice to new moms, a fun "mom" idea or their favorite thing about being a mom on their squares.  The quilt was to be assembled and auctioned to buy blankets for homeless individuals.  It was a great time! the only thing, I couldn't quite figure out how to simulate in our facilities was ice skating.