I attached streamers of various colors to some packing tape and hung it up using thumbtacks.
These were super easy to make and a big favorite with the kids. Get some lollipop sticks and place a marshmallow on top. Dip the top part of the marshmallow in water and roll in sprinkles. Display in some stryofoam. That's it, you're done!
Rainbow Swirl Lollipops:
I got these at Oriental Trading and tried to dress them up by placing them in styrofoam and covering the stryrofoam with some rainbow party streamers.
For the inside I ordered some rainbow Twizzlers online and got some rainbow pads and crayons from Oriental Trading.
I hope this helps you in your rainbow party planning! Let me know if you use any of these ideas. I am sure your party will turn out great.
Linking up to some of these great parties.