You have the basics ready; a color pattern and a theme (pooh bear). Just build your baby shower around these ideas. You can get a affordable banner at Walmart that reads something like "Our Baby Shower At The Hundred Acre Woods"
Decorate your venue with balloons and streamers that coincide with the theme of the nursery.
For food, I would keep it English. Make sure to make it all finger foods so its nice and mobile, here are some ideas:
- Cheddar cheese sticks
- Toast with condensed milk and cinnamon
- Apple slices with honey
- Grape and strawberry jam sandwiches
- Ham and cheese sandwiches
For games you can play winnie the pooh trivia games our baby bear cub trivia games.
There are so many things you can do with a winnie the pooh baby shower theme. Have fun! http://baby-shower-decoration-ideas.com/winnie-the-pooh-baby-shower-decorations/