For my son's 6th birthday party, we had a Dino Dig party.  Invitations were hand-made on tan cardstock with info printed on the front and foam dino stickers for decoration purchased at local craft store.  The party was in the backyard on a beautiful April day and was just warm enough for everyone to be comfortable outside. When the children arrived, I gave them dino tags" also made out of small rectangles of card stock in various colors with a yarn loop to wear the tag around their necks. Each color (red yellow blue green) was assigned a certain order of activities (this way I could control how many kids were at one station at a given time -this helped keep kids flowing from one activity to the next without a big back up of kids waiting for an activity -they also got to put stickers next to the activity when it was completed). The stations included: 1) the Dino Dig (My husband used railroad ties that we had to construct a large square sand box that we filled with sand (the kind for sandboxes).  I purchased dino skeletons from the Oriental Trading company -not very expensive -and we buried them in the sandbox)We gave each child a small sand buckets with shovel/digger (from Oriental Trading and also served as party favor)and put a small paintbrush in the bucket for "brushing off the fossils" like a true paleontologist. 2) Dino Tatoos (manned by my sister-in-law)-purchased from Oriental Trading 3) Dino Puzzle (large floor puzzle with big pieces)set up on the deck-a puzzle we had lying around the house -the kids worked together to complete then disassemble for the next group 4) Dino Operation (an operation-like game by National Geographic of a T-Rex where you use tweezers to remove the bones)-set up on a small table outside with chairs for the kids 5) Bone Relay Race (the last station on everyones card so the whole group could meet back up)-here the kids each got a dino mask (also from Oriental Trading) and they played an organized game of "bone relay." Once this was over it quickly turned into "Dino Tag" -got some really great pictures of the kids in their masks running around.  Food was easy -Dino-shaped nuggets fruit kabobs and juice boxes/water. Cake:  Dino-themed with a volcano on it. I also purchased some dino-decorations and plates/napkins from Oriental trading and the party came to around $100. We had around 20 children and they had a blast. Some of the kids even re-buried their dino skeletons to dig them up again. The party was great and now I'm wondering how to top that one for this year!"