My son loves knights so for his fourth birthday part we had a Knights and Princess party.  We used many ideas from this website, but tweaked them a little bit. For the invitations, I found renaissance princess and knight clip art. The invitations read, "Once Upon a Time, there lived a Brave and Valiant Knight named Sir Daniel. On the anniversary of Sir Daniel's 4th Birthday His  Sovereign Majesty, King David, Queen Sylvia, Princess Natalia, and Lord Paul (Grandpa) of Milton extended an invitation to this most joyous of occasions to other Noble Knights and Fair Maidens from Near and Far. The Jousting Festival took place at 10:30 o'clock in the morning on Saturday, the 17th day of January in the year of our Lord 2004 at the Castle located at (our address) in Milton.  Celebrants feasted on medieval food and cake, and partook in games of bravery and chivalry.  The favour of a reply was requested by the 11th day of January."   I used ZallmanCaps, CamelotCaps, (you can download these for free) and Old English fonts which made the invitations look like scrolls. We printed them on off white paper. I tied them with ribbon and wrote in calligraphy the child's name as follows "Princess Anna of Newton" or "Sir William of Belmont".  We asked the parents and children to dress up as knights or princesses or anything knight-related. I bought a Renaissance Princess Costume online for $15.00 and my husband dressed up as a king. The birthday boy was a knight. All the kids dressed up – we even had a dragon, a wizard, and a jester show up.  For decorations, I cut out enough cardboard to assemble a two-dimensional castle on the wall. I painted the castle gray, and painted windows and a portcullis on it. I made flags from felt and chopsticks and added those to the top of the castle towers. It was a great backdrop for pictures.  I also painted a file box with gray metallic paint and glued fake "jewels" on it.  That was the treasure box which we filled with knight and princess stuff (beads, coins, fairy tale bendable figures, etc.) from Oriental Trading Co. The kids got to take a handful of stuff from the box after every activity.  I made flags from felt (blue with gold fleur de lis, red and white, and red and blue) and hung those up on the walls.  The table was covered with a purple tablecloth and I ordered knight plates/cups/napkins from Birthday Party Express. We put platters of broiled chicken drumsticks (turkey legs are too big for 4-year-olds!), grapes and cheese, carrots and dip, a fruit and veggie platter, loafs of bakery bread on the table too.  I also bought a 200-foot long roll of "used car sales lot" flags (the ones you see on used car lots all the time) from Oriental Trading Co. and hung those up all the way across the ceiling. they looked just like real flags and made our dining room look like a jousting tournament. For activities:  We had the kids decorate shields which we made from cardboard and painted with metallic gray paint. We used elastic to add handles to the back. We used a good stapler to staple the elastic onto the shield and then covered the staples on the front of the shield with silver star stickers. The kids used stickers, glitter, and markers to decorate their shields. We also had the kids decorate princess hats which we made from poster board and netting.   The kids used butterfly and dragonfly foam stickers, and glitter to decorate the hats.  My husband read the book "Good Night, Good Knight" for story time. I also painted a dragon on a piece of cardboard to play "Pin the Fire on the Dragon".  We used red pieces of felt for the "fire". We also had toy castles (my son owns five, all from garage sales) scattered around the house so the kids could play with them. For the cake, I used my son's collection of knights to create a jousting scene on top of the cake which I frosted with chocolate frosting and sprinkled with green coconut (grass for jousting).   For the goodie bags, I ordered knight helmets for the boys (and had to order pretty bags for the girls because none of them wanted knight helmets!) At the end of the party, we gave each guest the book "The Knight and the Dragon" by Tomie dePaola.   Plus, they had their goodies from the treasure chest. For the thank you cards, I used the same fonts as above and added a picture of the child to whom the invitation was being sent dressed up for the party. The kids talked about the party for weeks. I was hoping Daniel would want another knight party this year, but he's moved on to baseball...thankfully, this website has tons of basebally party ideas, too!